Caer Dallben is a cottage farm within the lands of Prydain

Prydain

Prydain is the modern Welsh name for Britain.-Medieval:Prydain is the medieval Welsh term for the island of Britain . More specifically, Prydain may refer to the Brittonic parts of the island; that is, the parts south of Caledonia...

 and the starting point for each book of Lloyd Alexander's

Lloyd Alexander

Lloyd Chudley Alexander was a widely influential American author of more than forty books, mostly fantasy novels for children and adolescents, as well as several adult books...

 The Chronicles of Prydain

The Chronicles of Prydain

The Chronicles of Prydain is a five-volume series of children's fantasy novels by author Lloyd Alexander...

. It is also the setting for the series' final chapter.

Caer Dallben is a medieval-style farm with a cottage, pens and coops for the animals, a forge and barn. The farm was once Coll's, but was given the name Caer Dallben when the wizard Dallben

Dallben

Dallben is an important character in Lloyd Alexander's children's series The Chronicles of Prydain.-Profile:Dallben is described as an ancient man with a long white beard. He lives on the farm known as Caer Dallben, where he acts as protector of Coll's oracular pig, Hen Wen. He also is the...

 moved in. The Book of Three is housed there.

It is also home to Taran

Taran (character)

Taran is a fictional character in The Chronicles of Prydain series, as well as in the film and game named after the second novel, The Black Cauldron.-Profile:...

, the Assistant Pig-Keeper and the story's main character

Protagonist

A protagonist is the main character of a literary, theatrical, cinematic, or musical narrative, around whom the events of the narrative's plot revolve and with whom the audience is intended to most identify...

, as well as the orcaular pig, Hen Wen

Hen Wen

Hen Wen is a white sow featured in Lloyd Alexander's The Chronicles of Prydain. She is an oracular pig - that is, she has the ability to prophesy about future events and reveal hidden information...

, Princess Eilonwy

Princess Eilonwy

Princess Eilonwy is a fictional character in Lloyd Alexander's The Chronicles of Prydain and wife of High King Taran in the Chronicles of Prydain and also appears in Disney's 1985 animated film The Black Cauldron...

 (in The Black Cauldron

The Black Cauldron (novel)

The Black Cauldron is a 1965 fantasy novel, the second book in Lloyd Alexander's five-part novel series The Chronicles of Prydain . The story centers on the adventures of Taran, an Assistant Pig-Keeper in the magical land of Prydain, as he joins in a quest to capture the eponymous vessel, a...

) and Gurgi

Gurgi

Gurgi is a fictional character in The Chronicles of Prydain, the series of fantasy novels by Lloyd Alexander. Gurgi is the hero Taran's faithful companion, appearing in all five books.- Profile :...

 (from the end of The Book of Three

The Book of Three (novel)

The Book of Three is the first of Lloyd Alexander's five-part novel series The Chronicles of Prydain . Inspired by Welsh mythology, it follows the adventures of Taran, a boy in the care of the enchanter Dallben, as he enters manhood while fighting the forces of the evil Arawn Death-Lord...

 onwards). Later, after The Castle of Llyr

The Castle of Llyr

The Castle of Llyr is the third volume in the children's fantasy series Chronicles of Prydain by Lloyd Alexander, first published in 1966.Taran continues his adventures and encounters new friends and old enemies.- Plot :...

, Achren

Achren

Achren is a fictional character and villainess in the fantasy series The Chronicles of Prydain, written by Lloyd Alexander.-Profile:In the novels, Achren was once Queen of Prydain, and ruled many years as a harsh and vengeful tyrant, both as ruler and then as the Death-lord Arawn's consort...

 moves in, serving as the scullery maid

Scullery maid

In great houses, scullery maids were the lowest-ranked and often the youngest of the female servants and acted as assistant to a kitchen maid. The scullery maid reported to the cook or chef...

.

Caer Dallben, along with Caer Dathyl

Caer Dathyl (Prydain)

Caer Dathyl is the location from which the High King of Prydain ruled in the stories told in Lloyd Alexander's Chronicles of Prydain. It was built by the Sons of Don in the north of Prydain, among the Eagle Mountains, intended to protect Prydain from further conquests by Arawn of Annuvin...

, the capital of Prydain, are the two main places opposing Arawn Death-Lord. The Death-Lord himself cannot set foot on Caer Dallben, but his minions can. The exact reason why is never explained. It is said that he killed 19 men for this place, because there were 19 heads found.