The Ultimate, published in 2001 and written by K.A. Applegate, is the fiftieth book in the Animorphs

Animorphs

Animorphs is an English language science fiction series of young adult books written by K. A. Applegate and published by Scholastic. Five humans, Jake, Marco, Cassie, Rachel, and Tobias, and one alien, Aximili-Esgarrouth-Isthill , obtain the ability to morph into any animal they touch. They name...

series. It is narrated by Cassie

Cassie (Animorphs)

Cassie is a fictional character from the sci-fi book series Animorphs, written by K. A. Applegate. Her last name is never mentioned, although she referred to it as being "nice" in The Secret.-Biography:...

.

Plot summary

The book begins with the Animorphs and the rest of the inhabitants of the Hork-Bajir valley drilling and preparing for a surprise Yeerk attack. It is clear they are not ready for attack; the parents, particularly Rachel's mother, are having trouble adjusting, and the Animorphs are in disarray. Jake remains cold and distant to everyone; he no longer wants to be the one to make decisions and no longer has a clear idea about what is wrong and right. Cassie tells everyone that Jake wants a camp meeting and tells him about it mere minutes before the meeting is set to begin; Jake reluctantly agrees to have the meeting. Some of the parents express doubt about the Animorphs' actions and fail to realize the necessity of the war. The Animorphs argue that they know best, and they have experience with the Yeerks. They argue that war is the only way, and that everyone should agree to follow Jake's orders. In the end the whole camp agrees that Jake is to be the leader. Jake reluctantly accepts the burden of leader once again, seeing it as his duty because he is the only one who is capable of leading the Earth resistance.

The next morning Jake calls a meeting of just the six Animorphs and they agree that something needs to be done to increase the protection of the camp, and increase the overall size of the resistance. They are no longer in contact with the Yeerk resistance and they don't know how strong the organization is, and the information coming from the Chee seems to be very slow. They recognize that they need more than intelligence; they need a larger force and manpower. They begin discussing the possibility of adding more Animorphs, but none of them has forgotten David

David (Animorphs)

David is a fictional character from the sci-fi book series Animorphs, written by K. A. Applegate. His last name is never mentioned. David was introduced in the "David Trilogy", which included the regular-series books #20 The Discovery, #21 The Threat, and #22 The Solution...

, the disastrous last attempt to add a member to the group. However they feel they don't have much of a choice, as the war is clearly shifting to a more open battle, and the Animorphs need more numbers. They agree to use the morphing cube to create Animorphs from disabled teenagers about their age. They decide that it would be best to use kids because they would be more likely to accept the story and are less grounded in reality, and that they ought to use disabled teenagers because the Yeerks would see them as useless host bodies and there is little chance that any of them are Controllers.

Cassie, Marco, and Jake go to a hospital to begin the recruiting. They find a ward full of candidates and it is quickly determined that a boy named James, a wheelchair user, is the leader. They convince James to join the fight and he assembles his own team of kids that he thinks would be best. Thus the auxiliary Animorphs are formed. The original Animorphs take them to the Gardens to acquire battle morphs. The Animorphs and James continue to recruit more kids from the ward and after three nights of initiation the auxiliary Animorphs numbers 17. James and two of the others are healed of their affliction by the morphing power, but many more still remain disabled. Those healed agree to pretend to remain disabled for the duration of the war, so as not to alert the Yeerks. James proves to be a natural leader. Cassie wonders how it will work that James is now in charge of a majority of the Animorphs, but Jake is in charge overall. James chooses a male lion as his battle morph, the very same morph of the ill-fated David who challenged Jake's leadership. Jake, however, is not disturbed by this coincidence, merely remarking "Good choice James."

Cassie's father overhears a conversation discussing what they have done and confronts the group about the morality of their actions. Cassie recognizes the voice as the echo of her once naive self, and flies away from her father. She realizes more than ever how much she has changed, and how much all of the Animorphs have changed. She realizes they will never be children again and haven't been children for a long time.

During a separate recruiting session at a school for the blind

California School for the Blind

The California School for the Blind is a public educational institution for blind children, K-12, located in Fremont, California. Its campus is located next to the California School for the Deaf.- History :...

, the Escafil device

Escafil device

The Escafil device is a fictional technological apparatus from K.A. Applegate's popular children's book series Animorphs. It is the proper name for the "Andalite morphing cube", a device that when operated gives the user the ability to 'acquire' a copy of DNA patterns from any animal that physical...

 is used to give a blind girl the morphing power. The Animorphs fail to realize that the room is under video surveillance and the Yeerks are alerted of their presence. Tom Berenson (under control of a Yeerk) arrives with a battalion of Hork-Bajir and claims the Escafil device. Cassie is able to slip away and she goes to get James and the other new Animorphs at their hospital. They arrive and go to battle to save the original Animorphs. There are several close calls and one of the new Animorphs has to demorph in order to avoid dying. Visser One arrives and morphs a monstrous tentacle creature and goes after Jake. The other Animorphs try to save him but cannot get close enough. Once the Controller Hork-Bajir frees Jake from Visser One's grasp, this proves that the Yeerk resistance movement is not dead. There are still Yeerks fighting from the inside. Jake orders the Animorphs' retreat, and Tom slips into the forest with the Escafil device and with Jake in pursuit. Cassie follows Jake. There is a confrontation between Jake and Tom in the woods, and Cassie realizes that Jake is actually prepared to kill Tom. Cassie knows that if Tom kills Jake or if Jake kills Tom she will lose Jake either way. If she lets him go through with it he will never forgive himself, and the Jake she has come to love will be gone forever. This leads to Cassie's "betrayal"; she physically stops Jake from lunging toward Tom, thereby enabling Tom's escape with the device rather that have Jake kill him and get the morphing cube back.

James and the others arrive back safely. James reports that all of his Animorphs were calm during battle, no-one was seriously injured, nobody was screaming to get out, and nobody was threatening to give up their secret. Cassie reflects that even if Jake and the rest of the original Animorphs go down, at least the resistance would go on. The book ends with Cassie questioning whether the original six Animorphs are still a team, and whether or not they can continue to endure. She remarks that they have been back at the camp twelve hours and Jake has not so much as looked at her. As the book closes she confronts Jake, and he is furious at her. She remains convinced that letting Tom get away with the morphing cube was the right thing to do.

Contributions to the series' story arc

• The auxiliary team of Animorphs is formed.
• The Yeerks come into possession of the Escafil device.

Morphs

Morpher	Morphs acquired	Morphs used
Jake Jake Berenson Jake Berenson is a fictional character and one of the main protagonists from the science-fiction book series Animorphs, written by K. A. Applegate. Until the penultimate book of the series, his last name was never revealed, and he was known only as Jake...		Siberian Tiger, Peregrine Falcon Peregrine Falcon The Peregrine Falcon , also known as the Peregrine, and historically as the Duck Hawk in North America, is a widespread bird of prey in the family Falconidae. A large, crow-sized falcon, it has a blue-gray back, barred white underparts, and a black head and "moustache"... , Cockroach Cockroach Cockroaches are insects of the order Blattaria or Blattodea, of which about 30 species out of 4,500 total are associated with human habitations...
Rachel Rachel (Animorphs) Rachel is a fictional character from the sci-fi book series Animorphs. Her full name is never explicitly mentioned in the books, but her relation to her cousin Jake Berenson through their fathers makes it most likely to be Rachel Berenson, if it was never changed or hyphenated.-Biography:Before the...		Grizzly Bear Grizzly Bear The grizzly bear , also known as the silvertip bear, the grizzly, or the North American brown bear, is a subspecies of brown bear that generally lives in the uplands of western North America... , Bald Eagle Bald Eagle The Bald Eagle is a bird of prey found in North America. It is the national bird and symbol of the United States of America. This sea eagle has two known sub-species and forms a species pair with the White-tailed Eagle...
Tobias Tobias (Animorphs) Tobias is a fictional character from the sci-fi book series Animorphs written by K.A. Applegate. His surname is never mentioned, but had the Ellimist not altered time in order to take his father, Elfangor-Sirinial-Shamtul, back to his old life, his full name would have been Tobias Fangor, the...		Human Human Humans are the only living species in the Homo genus...  (Himself)
Cassie Cassie (Animorphs) Cassie is a fictional character from the sci-fi book series Animorphs, written by K. A. Applegate. Her last name is never mentioned, although she referred to it as being "nice" in The Secret.-Biography:...		Cockroach Cockroach Cockroaches are insects of the order Blattaria or Blattodea, of which about 30 species out of 4,500 total are associated with human habitations... , Osprey Osprey The Osprey , sometimes known as the sea hawk or fish eagle, is a diurnal, fish-eating bird of prey. It is a large raptor, reaching more than in length and across the wings... , Cockroach Cockroach Cockroaches are insects of the order Blattaria or Blattodea, of which about 30 species out of 4,500 total are associated with human habitations... , Great Horned Owl Great Horned Owl The Great Horned Owl, , also known as the Tiger Owl, is a large owl native to the Americas. It is an adaptable bird with a vast range and is the most widely distributed true owl in the Americas.-Description:... , Fly Fly True flies are insects of the order Diptera . They possess a pair of wings on the mesothorax and a pair of halteres, derived from the hind wings, on the metathorax...
Marco Marco (Animorphs) Marco is a fictional character from the sci-fi book series, Animorphs, written by K. A. Applegate. His last name is never mentioned.-Biography:...		Gorilla Gorilla Gorillas are the largest extant species of primates. They are ground-dwelling, predominantly herbivorous apes that inhabit the forests of central Africa. Gorillas are divided into two species and either four or five subspecies... , Osprey Osprey The Osprey , sometimes known as the sea hawk or fish eagle, is a diurnal, fish-eating bird of prey. It is a large raptor, reaching more than in length and across the wings... , Cockroach Cockroach Cockroaches are insects of the order Blattaria or Blattodea, of which about 30 species out of 4,500 total are associated with human habitations...
Ax Aximili-Esgarrouth-Isthill Aximili-Esgarrouth-Isthill is a fictional character from the sci-fi book series Animorphs.-Biography:Aximili is a young Andalite who becomes stranded on Earth when the Andalite Dome Ship GalaxyTree is shot down by Yeerk fighters...		Northern Harrier, Human Human Humans are the only living species in the Homo genus...
Visser One Visser Three Visser Three, born as Esplin 9466 Primary and later known as Visser One, is a fictional character and the main antagonist of the sci-fi book series Animorphs, written by K.A. Applegate. He is the leader of the Yeerk forces on Earth, having inherited the planet from Edriss 562, who was Visser One at...		Human Human Humans are the only living species in the Homo genus... , "Squid Squid Squid are cephalopods of the order Teuthida, which comprises around 300 species. Like all other cephalopods, squid have a distinct head, bilateral symmetry, a mantle, and arms. Squid, like cuttlefish, have eight arms arranged in pairs and two, usually longer, tentacles... like creature"
James Auxiliary Animorphs The Auxiliary Animorphs are a team of fictional characters from the Animorphs series by K. A. Applegate. All of them were physically disabled in some form...	Pigeon, Lion Lion The lion is one of the four big cats in the genus Panthera, and a member of the family Felidae. With some males exceeding 250 kg in weight, it is the second-largest living cat after the tiger...	Pigeon, Lion Lion The lion is one of the four big cats in the genus Panthera, and a member of the family Felidae. With some males exceeding 250 kg in weight, it is the second-largest living cat after the tiger...
Collette	Pigeon, Crocodile Crocodile A crocodile is any species belonging to the family Crocodylidae . The term can also be used more loosely to include all extant members of the order Crocodilia: i.e...	Pigeon, Crocodile Crocodile A crocodile is any species belonging to the family Crocodylidae . The term can also be used more loosely to include all extant members of the order Crocodilia: i.e...
Kelly	Pigeon, Walrus Walrus The walrus is a large flippered marine mammal with a discontinuous circumpolar distribution in the Arctic Ocean and sub-Arctic seas of the Northern Hemisphere. The walrus is the only living species in the Odobenidae family and Odobenus genus. It is subdivided into three subspecies: the Atlantic... , Bull Bull Bull usually refers to an uncastrated adult male bovine.Bull may also refer to:-Entertainment:* Bull , an original show on the TNT Network* "Bull" , an episode of television series CSI: Crime Scene Investigation...	Pigeon, Walrus Walrus The walrus is a large flippered marine mammal with a discontinuous circumpolar distribution in the Arctic Ocean and sub-Arctic seas of the Northern Hemisphere. The walrus is the only living species in the Odobenidae family and Odobenus genus. It is subdivided into three subspecies: the Atlantic... , Bull Bull Bull usually refers to an uncastrated adult male bovine.Bull may also refer to:-Entertainment:* Bull , an original show on the TNT Network* "Bull" , an episode of television series CSI: Crime Scene Investigation...
Timmy	Pigeon, Bobcat Bobcat The bobcat is a North American mammal of the cat family Felidae, appearing during the Irvingtonian stage of around 1.8 million years ago . With twelve recognized subspecies, it ranges from southern Canada to northern Mexico, including most of the continental United States...	Pigeon, Bobcat Bobcat The bobcat is a North American mammal of the cat family Felidae, appearing during the Irvingtonian stage of around 1.8 million years ago . With twelve recognized subspecies, it ranges from southern Canada to northern Mexico, including most of the continental United States...
Julio	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , Grizzly Bear Grizzly Bear The grizzly bear , also known as the silvertip bear, the grizzly, or the North American brown bear, is a subspecies of brown bear that generally lives in the uplands of western North America...	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , Grizzly Bear Grizzly Bear The grizzly bear , also known as the silvertip bear, the grizzly, or the North American brown bear, is a subspecies of brown bear that generally lives in the uplands of western North America...
Judy	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , African Elephant	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , African Elephant
Erika	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , Lion Lion The lion is one of the four big cats in the genus Panthera, and a member of the family Felidae. With some males exceeding 250 kg in weight, it is the second-largest living cat after the tiger... ess	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , Lion Lion The lion is one of the four big cats in the genus Panthera, and a member of the family Felidae. With some males exceeding 250 kg in weight, it is the second-largest living cat after the tiger... ess
Tricia	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , Rhinoceros Rhinoceros Rhinoceros , also known as rhino, is a group of five extant species of odd-toed ungulates in the family Rhinocerotidae. Two of these species are native to Africa and three to southern Asia....	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , Rhinoceros Rhinoceros Rhinoceros , also known as rhino, is a group of five extant species of odd-toed ungulates in the family Rhinocerotidae. Two of these species are native to Africa and three to southern Asia....
Craig	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , Black Panther Black panther A black panther is typically a melanistic color variant of any of several species of larger cat. Wild black panthers in Latin America are black jaguars , in Asia and Africa they are black leopards , and in North America they may be black jaguars or possibly black cougars A black panther is...	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , Black Panther Black panther A black panther is typically a melanistic color variant of any of several species of larger cat. Wild black panthers in Latin America are black jaguars , in Asia and Africa they are black leopards , and in North America they may be black jaguars or possibly black cougars A black panther is...
Jessie	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , Wolf	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , Wolf
Liam	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , Polar Bear Polar Bear The polar bear is a bear native largely within the Arctic Circle encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is the world's largest land carnivore and also the largest bear, together with the omnivorous Kodiak Bear, which is approximately the same size...	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , Polar Bear Polar Bear The polar bear is a bear native largely within the Arctic Circle encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is the world's largest land carnivore and also the largest bear, together with the omnivorous Kodiak Bear, which is approximately the same size...
Ray	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , Leopard Leopard The leopard , Panthera pardus, is a member of the Felidae family and the smallest of the four "big cats" in the genus Panthera, the other three being the tiger, lion, and jaguar. The leopard was once distributed across eastern and southern Asia and Africa, from Siberia to South Africa, but its...	Red-tailed Hawk Red-tailed Hawk The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West... , Leopard Leopard The leopard , Panthera pardus, is a member of the Felidae family and the smallest of the four "big cats" in the genus Panthera, the other three being the tiger, lion, and jaguar. The leopard was once distributed across eastern and southern Asia and Africa, from Siberia to South Africa, but its...
Elena	Human Human Humans are the only living species in the Homo genus...  (Rachel)	Human Human Humans are the only living species in the Homo genus... (Rachel)

Trivia

• The cover quote is, "Now there are no more secrets..."
• The inside cover quote is, "No more lies..."

Mistakes

In the battle that takes place, after Tobias gets hit by Visser One, it is stated he demorphed and remorphed. Which is impossible, seeing as he was in his natural body when he was hit.