When a girl and her brother find a small green dragon in the midst of a litter of piglets, they are surprised and delighted. He is a perfect pet, they think- but perhaps a grown dragon will cause some problems.
Relates the adventures of the strongest girl in the world and her two friends Tommy and Annika, as Pippi goes to school, rescues a horse, captures a tiger, and they all visit Pippi's father, the king of an island in the South Seas.