-- See Fantasy fiction Use for works that feature imaginary worlds, extraordinary creatures, sorcerers, epic quests or magic.
-- See Science fiction Use for works of fantasy that deal with possible though not necessarily probable events and are based approximately on scientific principles, e.g. space travel, time travel, etc. Use also for works in which mankind confronts alien cultures or environments. For works that deal with non-existent, incredible, or unreal worlds, characters, and physical principles, use Fantasy fiction.