TITLE: The Second Summoning
SERIES: The Keeper Chronicles #2
AUTHOR: Tanya Huff
"After closing the portal to hell, Claire and her talking cat, Austin, acquired a new companion--Dean, who was a Bystander and should not have remembered Keepers existed. But with Dean around, and a little of her sister Diana's meddling--the world is heading for Chaos, and Claire is about to face a challenge beyond her wildest imagination."
An entertaining and amusing urban fantasy. This one has an anatomically correct angel and a demon, not to mention the geriatric cat who is rather hilarious.