rom New York Times #1 best-selling author Rick Riordan and award-winning author Mark Oshiro comes a new standalone adventure featuring two of the most popular characters from the world of Percy Jackson and the Olympians.

ONE PROPHECY. TWO DEMIGODS. A HEROIC QUEST.

Nico di Angelo is pretty familiar with the realms of death, being the son of Hades and all. So when a desperate voice starts plaguing his dreams, Nico is convinced it's coming from the Underworld and belongs to an old friend - a ref...

Half Boy. Half God. All Hero. Honestly, blowing up another school was the last thing I wanted to do. As the son of a Greek God, I've had my share of near-death disaster - and now my arch enemy Luke wants to invade our camp via an ancient labyrinth. If he succeeds, thousands of bloodthirsty monsters will attack.