After being rescued from a fiery death by Angela Obscura, an ancient demon from the underworld, Donny Taylor is settling into a new home in Sulfur. Life as Angela’s mortal assistant isn’t so bad. Donny gets to travel to exotic places through fire portals, money is no object, and he’s seeing amazing things that few mortal boys have ever laid eyes on. Plus Angela is fun to be around. What’s not to like? Well there is one minor detail. Being Angela’s assistant has almost gotten Donny killed a couple of times. And Angela doesn’t seem to take his worries very seriously. After all, she may look like a beautiful human, but she’s a demon and hard to kill. Donny, however, is all too vulnerable. When another encounter with a horrific underworld monster nearly gets him devoured, he’s starting to wonder if he should find a way out of the whole situation. Then the king of the underworld’s ferrymen gives Angela and Donny a mission. Souls are disappearing before they reach Sulfur. But who’s taking them, and why? Their quest takes the pair on another globe-hopping adventure, where they join forces with a charming old friend of Angela’s named Fiasco. When Donny finds himself in danger yet again, it’s finally time to decide: Should he help Angela pursue this mystery to its shocking conclusion? Or should he plan his escape to a normal mortal life, before it all goes down in flames?