I believe in Tainted Angels

Review of Revelation (Novel of the Seven Signs) by Erica Hayes 5*
BLURB: A fallen angel with a mission and a medical examiner who's lost her faith are fighting for their souls in a glittering, near-future Manhattan. A zombie plague is ravaging the slums and Dr. Morgan Sterling is on a mission to cure it and prove it isn't the sign of the end of days but a nasty disease; but then an angel appears in her morgue. Luniel is not just a fallen angel but a powerful warrior sworn to fight evil in hope of redemption. Can he persuade Morgan to trust him and stop the plague before it threatens all of their worlds?
My Review:  I'm not a very religious person but I do like a book full of demons (mostly thanks to Larrisa Ione's Demonica books) so this one seemed worth a try. It has an ME with a belief in modern science and a Tainted Angel who still believes in God and Heaven. What I liked most was that there was no 'bible thumping' even though the whole story's theme was based on the biblical seven signs of the apocalypse. In fact right through to the end the Heroine does not believe in Heaven even though she ends up believing in Angels, Demons and the biblical signs which are rather obviously there.