When Otto has trouble learning to swing on vines like his monkey friends, he decides to make his own swing set instead.

With help from his friend Otto the robot, Pip the mouse tries to fly.

Illustrations and simple text relate how Zip, the unlucky alien magician, zaps Bip so they can play some ball, but things do not go according to plan when Bip grows so big that he flies away like a giant balloon. Includes note to parents, introduction tothe books vocabulary, and reading comprehension questions.