Title: Rain Storm
Author: Barry Eisler
More important, Rain starts to question his own feelings and shows signs of developing, if not a conscience, than a level of self-awareness not previously on display. He's come to care about people despite his best efforts not to, though that fact doesn't alter his behavior. He continues to be a fascinating character, one whose development feels real.
And the Acknowledgments, full of specifics, are nearly as informative as the explicit descriptions in the narrative that have informed all Eisler's Rain books thus far. I can't wait til the latest, Killing Rain, is available in paperback. This is one series that has wormed its way into my heart.