"Twelve Sharp" by Janet Evanovich. St. Martin's Press, 2006.
The latest in this wonderfully trashy mystery series involving bounty hunter Stephanie Plum involves fewer car burnings and gallant rescues, and shows a new dimension in the character of Ranger. In this episode, Ranger's twelve year old daughter has been kidnapped from her foster parents by a lunatic who has adopted Ranger's persona, and who is just smart enough and experienced enough to elude all attempts to apprehend him.
I was a little disappointed, actually, because it seems like the twisted, exotic characters are becoming more "normal" and therefore less interesting. However, both Marty and I finished the book in record time: within 48 hours it was back at the library, ready to go to the next on the 150-person waiting list. Can't wait for number thirteen!