Matt Wagner's Grendel Omnibus
Volume 3, Orion's ReignBook - 2013 | 1st ed.
"From the broken world of the never-before-reprinted Incubation years rise parallel figures: the corruption-fighting Orion Assante and a mysterious new Grendel. Each wages his own war against Pope Innocent XLII, in God and the devil, and the aftermath establishes the most powerful Grendel yet, in Devil's reign."--P.  of cover.