From New York Times bestselling author Craig Alanson comes book four in the Convergence series, melding action-packed urban fantasy with his signature humor.Kaz Wolfe has everything he needs to prevent a Convergence that would allow gods and monsters from the Nether to invade our world. Everything, other than a single clue about what a Convergence is. Or how it works. Or how to stop it. To get answers, he might have to take a fun-filled family road trip to the last place he wants to the Netherworld.