"Somnambula" is a two part episode, containing the eleventh and twelfth episodes, of the second season of the animated series based on the toy line of the same name, My Little Pony. It was originally aired on September 21 and September 22, 1987.
The ponies prepare a surprise Welcome Home party for the Big Brother ponies who have been racing around the world. However, before the Big Brothers arrive, an old witch named Somnambula puts the adult ponies into a trance, and then forces them to play in a circus as she drains their youth.
- A character in the animated series My Little Pony: Friendship is Magic was given the same name as the witch in this cartoon, as was her home.