Children's fantasy

[8] The golden age of children's fantasy, in scholars' view, occurred in the mid-20th century when the genre was influenced by J. R. R. Tolkien's The Hobbit and C. S. Lewis's The Chronicles of Narnia.

[9][10] In the vein of Narnia, the post-war period saw rising stakes and manifestations of evil in the works of Susan Cooper and Alan Garner.

[13] In the late 1990s, J. K. Rowling's Harry Potter led to a commercial boom in the genre, reviving older authors' careers and spawning many imitators.

[14][15] A concurrent success is Philip Pullman's His Dark Materials, a darker, realistic fantasy that led to a corresponding trend in a new young adult market.

[16][17] The protagonists are usually children or teens who have unique abilities, gifts, possessions or even allies that allow them to face powerful adversaries.

Illustration from first edition of The Wonderful Wizard of Oz