Demigods Nico di Angelo and Will Solace must endure the terrors of Tartarus to rescue an old friend in this thrilling adventure co-written by New York Times #1 best-selling author Rick Riordan and award-winning author Mark Oshiro. Percy Jackson fans, rejoice!...
From New York Times number 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.