1. Percy Jackson & The Olympians The Ultimate Guide Hardcover Like new Includes all 9 trading cards( It's the handbook no half-blood should be without: a fully illustrated, in-depth guide to gods, monsters, and all things Percy. This novelty companion to the best-selling series comes complete with trading cards, full-color diagrams, and maps, all packaged in a handy, "manual-size" book with a crisp, magnetic flap enclosure. 2. Percy Jackson & the Olympians The Demigod Files. Hardcover First Edition Like new How do you handle an encounter with Medusa on the New Jersey interstate? What's the best way to take down a minotaur? Become an expert on everything in Percy's world with this must-have guide to the Percy Jackson and the Olympians series. Complete with interviews, puzzles, games, and original short stories by Rick Riordan. 3. The Demigod Diaries The Heroes of Olympus HB 1st edit What dangers do runaway demigods Luke and Thalia face on their way to Camp Half-Blood?