CBS developing adaptation of Anne Rice time-travel novel ANGEL TIME

It's been reported that CBS are developing a pilot for Angel Time; an adaptation of the Anne Rice novel of the same name—the first in her The Songs of the Seraphim series.

The pilot is being written by Josh Harto and Liz Garcia (Memphis Beat), with Joe Carnahan (Narc, The Grey) slated to direct.

I'm unaware of these books, but they apparently involve a modern-day New Orleans hitman called Toby O'Dare (aka 'Lucky the Fox'), who accepts an offer from a mysterious stranger (a 'seraph') to atone for his sins. O'Dare duly finds himself transported back through time to 13th-century England; beginning a quest for salvation in this primitive, frightening setting.

That sounds very interesting. I'm a sucker for a good time-travel yarn, and this sounds like an extreme version of Life on Mars—if Sam Tyler were a villain trying to repent, and found himself going back to the 1270's.

Has anyone here read the books? I don't want any spoilers, but would it bet set entirely in the 13th-century from thereon in? Is is a medieval story that just happens to feature a man from the future? Mind you, I'd be more excited if it wasn't on CBS and written by the duo behind TNT's short-lived Memphis Beat...