Percy Jackson and the Sword of Hades by Rick Riordan
Persephone had summoned Percy, Thalia and Nico, to retrieve the sword Hades made in secret. It was stolen, and the underworld is under lockdown, but the heroes don't have much time left to find it before it falls into enemy hands. So good! rating ★★★ ★ ★ cover ★★ ★ ★ ★ series Percy Jackson and the Olympians #4.5 genre ya, urban fantasy, Greek Gods, short stories, adventure published February 1, 2009 number of pages 72 Goodreads || Amazon happy reading, anie