Runaway teenagers -- Fiction. Teenagers -- Juvenile fiction. Brothers and sisters -- Juvenile fiction. Good and evil -- Juvenile fiction. Space and time -- Juvenile fiction.

Superheroes -- Juvenile fiction. Supervillains -- Juvenile fiction. Vigilantes -- Juvenile fiction. Teenagers -- Juvenile fiction. Brothers and sisters -- Juvenile fiction.

Good and evil -- Juvenile fiction. Monsters -- Juvenile fiction. Interpersonal relations in adolescence -- Juvenile fiction. Boarding schools -- Juvenile fiction. Good and evil -- Fiction.

Witches -- Juvenile fiction. Good and evil -- Juvenile fiction. Good and evil -- Fiction. England -- Juvenile fiction. Young adult fiction.

Puzzles -- Juvenile fiction. Time travel -- Juvenile fiction. Holography -- Juvenile fiction. Good and evil -- Juvenile fiction. Young adult fiction.

Dreams -- Juvenile fiction. Prophecy -- Juvenile fiction. Good and evil -- Juvenile fiction. Young adult fiction.