The Weakness is the thirty-seventh 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, written by K.A. Applegate. It is known to have been ghostwritten

Ghostwriter

A ghostwriter is a professional writer who is paid to write books, articles, stories, reports, or other texts that are officially credited to another person. Celebrities, executives, and political leaders often hire ghostwriters to draft or edit autobiographies, magazine articles, or other written...

 by Elise Smith. It is narrated by 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...

.

Plot summary

During a failed attempt to assassinate Visser Three

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...

 using cheetah

Cheetah

The cheetah is a large-sized feline inhabiting most of Africa and parts of the Middle East. The cheetah is the only extant member of the genus Acinonyx, most notable for modifications in the species' paws...

 morphs, the Animorphs learn that the Council of Thirteen has sent an inspector to check up on the progress of the invasion of Earth

Earth

Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...

. Seeing an opportunity to discredit Visser Three politically, Rachel devises a plan to terrorize local businesses run by known Controllers. With 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...

 out of town, Rachel is temporarily elected to lead the Animorphs, much to Marco's

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:...

 disdain.

The Animorphs spend the day putting Rachel's plan into action. Their first raid occurs at a news station, where a tour is being given to a group of people. An elderly man is shocked by the sight of wild animals destroying the news room and falls down. During a break in the operation, Rachel and 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:...

 see a news report covering the first raid and learn that the man who fell down has died of a heart attack.

Rachel pushes the Animorphs for one last raid at the Community Center, and opts to go in with everyone morphed as 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...

s. The others are hesitant since they have lost the element of surprise and the Community Center is a Yeerk

Yeerk

Yeerks are a fictional extraterrestrial species from the book and television series "Animorphs" written by K. A. Applegate and published by Scholastic.-Biology:...

 stronghold, but Rachel remains insistent. The raid goes badly after Visser Three and the inspector, a Garatron-Controller, join the fight. Having all morphed the same animal and therefore having no versatility, the Animorphs are forced to withdraw, but Cassie is captured before she can get out.

The remaining Animorphs return to Cassie's barn. Rachel, devastated by her leadership failure, attempts to pass the responsibility to Marco, who berates her for her show-off attitude seen throughout the day. Marco declines, saying that any attempt to rescue Cassie is Rachel's responsibility. With less than an hour to save Cassie, Rachel comes up with a plan to get them into the Yeerk pool.

Rachel, Marco, and a human-morphed 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...

 and 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...

 assemble at Morgan Airport, where they jump the fence and hijack a private jet belonging to Phillip Morris USA. After putting the plane on a collision course with a vacant building that is known to harbor a large entrance for Bug fighters to access the Yeerk pool complex, the Animorphs bail out of the plane in their various bird-of-prey morphs and fly into the Yeerk pool. Rachel is the first to arrive, where she and Cassie are forced to engage several Hork-Bajir

Hork-Bajir

The Hork-Bajir are a race of aliens in the Animorphs novels.The Hork-Bajir are fictional aliens that are usually about seven feet tall. They are a dark shade of green and have three-toed theropod feet. Their necks are long and they have a mouth that resembles a falcon's beak with teeth. Their legs...

-Controllers. The fighting is quickly halted by Visser Three, however, when he challenges the Garatron-inspector to defeat the "Andalite Bandits" for himself. The inspector reluctantly accepts and engages Rachel and Cassie. They struggle to hold their ground against the incredibly fast Garatron-Controller until Tobias and Ax arrive, carrying Marco in cobra

Cobra

Cobra is a venomous snake belonging to the family Elapidae. However, not all snakes commonly referred to as cobras are of the same genus, or even of the same family. The name is short for cobra capo or capa Snake, which is Portuguese for "snake with hood", or "hood-snake"...

-morph. Marco manages to fatally bite the inspector and the Animorphs make their escape. Visser Three makes no effort to stop them and mocks the inspector as he slowly dies from the venom.

Rachel visits the family of the man who died during the raid on the news station. After offering her condolences, she quickly leaves and finds Jake waiting for her in the driveway. Rachel tells Jake that she "screwed up", but Jake retorts that she didn't get anyone killed and that is all that matters. Rachel tells Jake to never go away again.

New 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...
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...	Cheetah Cheetah The cheetah is a large-sized feline inhabiting most of Africa and parts of the Middle East. The cheetah is the only extant member of the genus Acinonyx, most notable for modifications in the species' paws...	Cheetah Cheetah The cheetah is a large-sized feline inhabiting most of Africa and parts of the Middle East. The cheetah is the only extant member of the genus Acinonyx, most notable for modifications in the species' paws... , 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... , 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... , 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...		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...
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:...	Cheetah Cheetah The cheetah is a large-sized feline inhabiting most of Africa and parts of the Middle East. The cheetah is the only extant member of the genus Acinonyx, most notable for modifications in the species' paws...	Cheetah Cheetah The cheetah is a large-sized feline inhabiting most of Africa and parts of the Middle East. The cheetah is the only extant member of the genus Acinonyx, most notable for modifications in the species' paws... , Wolf, 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... , 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... , Seagull
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:...	Cheetah Cheetah The cheetah is a large-sized feline inhabiting most of Africa and parts of the Middle East. The cheetah is the only extant member of the genus Acinonyx, most notable for modifications in the species' paws...	Cheetah Cheetah The cheetah is a large-sized feline inhabiting most of Africa and parts of the Middle East. The cheetah is the only extant member of the genus Acinonyx, most notable for modifications in the species' paws... , 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... , 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... , 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... , Cobra
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...	Cheetah Cheetah The cheetah is a large-sized feline inhabiting most of Africa and parts of the Middle East. The cheetah is the only extant member of the genus Acinonyx, most notable for modifications in the species' paws...	Cheetah Cheetah The cheetah is a large-sized feline inhabiting most of Africa and parts of the Middle East. The cheetah is the only extant member of the genus Acinonyx, most notable for modifications in the species' paws... , Northern Harrier, 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...
Visser Three 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...		Putrid Flesh Alien