The Demigod Files is a collection of short stories by Rick Riordan published on February 10, 2009.

Additional contents are a letter from the Camp Half-Blood scribe Rick Riordan, question-and-answer style "interviews" with some of the campers, and various activities such as a crossword puzzle,[5] and a preview of The Last Olympian.

Beckendorf, a son of Hephaestus, suggests Percy to ask Annabeth, daughter of Athena, to the Fourth of July fireworks, the biggest dating event of the summer at Camp Half-Blood.

Annabeth forces the boys to stay in Capture the Flag prison while the girls go finish the game.

The story takes place in between The Battle of the Labyrinth and The Last Olympian and has narrative connections to The Heroes of Olympus and The Trials of Apollo as the bronze dragon, renamed Festus, goes on to play a crucial role in future stories, as does the anthill encountered in the narrative.

It's part of the canon as a whole, as it has narrative connections to The House of Hades and The Sun and the Star where the memory-wiped Bob plays a crucial role in both books.

Persephone calls Percy, Thalia and Nico, the children of the Big Three, into the Underworld to retrieve Hades' new sword from a demigod spy who stole it.

The book contains fictional interviews with multiple characters at Camp Half-Blood including Percy Jackson, Annabeth Chase, Grover Underwood, the Stoll brothers Connor and Travis, and Clarisse La Rue.

"[5] School Library Journal reviewer Tim Wadham commended the writing, saying, "Despite the fact that this is more of a marketing package than anything else, the quality of and interest in the three stories likely justifies its purchase.