In hardcover for the first time! Heaven has a problem. Rogue angels are defecting to Earth to live amongst humanity, jeopardizing the balance of good and evil on Earth, blending in with the population... but now heaven has found their solution.Enter Mercy Sparx - a devil girl from the forgotten underworld of Sheol. This boozing, fighting trouble-maker disguised as a human, drafted as the most unlikely of candidates to handle "Heaven's Dirty Work." Over 400 pages, collecting every Mercy Sparx comic from 2008-2016!