"Published in the United Kingdom by Tor, 2006"--T.p. verso.

In the city of Deepgate, suspended by chains over a seemingly bottemless abyss, there are two angels: one, an untested boy, the last of his line; the other, a psychotic murderer mad for revenge--or redemption. When one of the city's own turns against its people, bringing enemies to its doorstep, both seek a powerful magic at the bottom of the chasm--and learn that what lies below is mare more sinister than what they've been taught to expect.