Science fiction -- Juvenile fiction. Metamorphosis -- Juvenile fiction. Extraterrestrial beings -- Fiction.
Science fiction -- Juvenile literature. Metamorphosis -- Juvenile literature. Metamorphosis -- Fiction.
Science fiction -- Juvenile fiction. Metamorphosis -- Juvenile fiction. Science fiction.
Animorphs -- Juvenile fiction. Extraterrestrial beings -- Juvenile fiction. Metamorphosis -- Juvenile fiction.
Fantasy fiction. Animorphs (Fictitious characters) -- Fiction. Metamorphosis -- Fiction.
Space vehicles --Fiction. Outer space --Exploration --Fiction. Computers --Fiction. Science fiction.