Young adult fantasy

Fantasy is a genre of speculative fiction that involves supernatural or magical elements, often including completely imaginary realms and creatures.

The genre's roots lie in fantasy literature and drama. From the twentieth century onward, it has expanded into various media, including film, television, graphic novels, manga, animation, and video games.

The expression fantastic literature is often used for this genre by Anglophone literary critics. An archaic spelling for the term is phantasy.

From Wikipedia