Addy's boss has been murdered. She's next. She's been folded into something that supernatural forces want, and it looks like she'll have no choice in the matter. Tab's been through hell to make sure this sort of thing doesn't happen?literally. The red-winged Angel of Free Will cares vehemently about individual agency in human destiny. How much he cares about Addy herself may be another thing entirely, but at any rate, she has a better chance with him than with the rest of the Angelic family, Fallen or otherwise. In a run for her life and a race in which the involvement of the Devil himself is considered among the least of their worries, Addy must find enough moments of calm to unfold the Angel's Grace inside her, learn from the visions it provides, and find the keys to Heaven and Hell.