Mike Carey 
Suicide Risk Vol. 6 [PDF ebook] 

With his newly adopted Earth at stake, Requiem must forge an alliance with a powerful entity more dangerous than himself: Aisa. The follower of a great and ancient goddess, Aisa and her sister Diva may hold the key to closing the F.A.U.L.T.Line once and for all-but on which side will Tracey find herself when they do? Mike Carey (Lucifer, The Unwritten) and fan-favorite artist Elena Casagrande (Hulk, Hack/Slash) conclude the mysterious superhero world of Suicide Risk with this critically acclaimed sixth and final arc. Collects issues #22-25.