Foundlings -- Juvenile fiction. Girls -- Juvenile fiction. Robots -- Juvenile fiction. Wizards -- Juvenile fiction. Magic -- Juvenile fiction.

Friendship -- Juvenile fiction. Social classes -- Juvenile fiction. Robots -- Juvenile fiction. Detective and mystery stories. Middle school boys -- Juvenile fiction.

Orphans -- Juvenile fiction. Robots -- Juvenile fiction. Rockets (Aeronautics) -- Juvenile fiction. Extraterrestrial beings -- Juvenile fiction. Human-alien encounters -- Juvenile fiction.