Nico, the son of Hades, and his boyfriend Will, the son of Apollo, travel to Tartarus, the deepest, darkest part of the Underworld as they attempt to rescue an old friend.
Rick Riordan (he/him), dubbed "storyteller of the gods" by Publishers Weekly, is the author of five #1 New York Times best-selling middle grade series with millions of copies sold throughout the world, including Percy Jackson and the Olympians, The Heroes of Olympus, and the Trials of Apollo, all based on Greek and Roman mythology. He lives in Boston, Massachusetts with his wife and two sons. Follow his news on RickRiordan.com.
