Science fiction. Death -- Juvenile fiction. Survival -- Juvenile fiction. Love -- Juvenile fiction. Social classes -- Juvenile fiction.

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

College stories. Examinations -- Juvenile fiction. Government, Resistance to -- Juvenile fiction. Science fiction. Young adult fiction.

Science fiction. Ability -- Juvenile fiction. Love stories. Soldiers -- Juvenile fiction. Dictatorship -- Juvenile fiction.

Extraterrestrial beings -- Juvenile fiction. Good and evil -- Juvenile fiction. High schools -- Juvenile fiction. Love stories. Science fiction.