"The problem with crucifying yourself is you can never hammer in the third nail. Someone's got to do it to you."

After a lifetime of thievery and murder, Martin Abueg hangs on his crucifix tree inside Hell's Harvest of Pain, waiting to do the hardest time there is—eternal damnation at Corpse Mountain.

Meanwhile, Teresa LeFleur and her Untethered Angels' war to remake Hell and destroy Lady Priscilla and her Blackfire army has delayed Priscilla's plans to expand her Infernal kingdom to The Dark Easy.

Enter a work friend from Martin's past, with a crazy plan to pull off a heist at Pandaemonium's Library of Burning Books, break out of Hell, and return to the living world to hunt down a fatal weakness that can end Lady Priscilla's reign forever—her wings.