"Archangel's Kiss" by Nalini Singh

Elena Deveraux was changed from a human to an angel and has been in a coma for a year.  Her lover is Raphael, a dangerous and powerful archangel who must now teach her how to fly and how to defend herself against the most powerful archangel of all, one who has been reanimating the dead just for kicks.

Singh builds a beautiful and dangerous world in this second book in her Guild Hunter series.  This was an interesting and sometimes gory story of an alternate universe where archangels are the most powerful creatures on Earth.  Elena is the first "made" angel, and many outside of Raphael's territory want her dead.  It kept my interest, but I would've enjoyed it more if I'd read the first in the series.  352 pages.