In the first book of the chronicles of Prydain, Taran, Assistant Pig-Keeper at Caer Dallben, searches for the oracular pig Hen Wen while the forces of evil gather.
Taran, Assistant Pig-Keeper of Prydain, faces dangers as he seeks the magical Black Cauldron, the chief implement of the evil powers of Arawn, lord of the Land of Death.
When Princess Eilonwy is sent to the Isle of Mona for training, she is bewitched by the evil enchantress Achren, so Taran and other friends must try to rescue her.
In the fourth book of the chronicles of Prydain, Taran, hoping to win the hand of Princess Eilonwy, sets off with Gurgi to discover his birthright and the truth about himself.
In this final part of the chronicle of Prydain the forces of good and evil meet in an ultimate confrontation, which determines the fate of Taran, the Assistant Pig-Keeper who wanted to be a hero.