Caleb Carr - The Alienist. I so loved it, I went on to The Angel of Darkness. I sincerely wish I had loved that as well, I haven't much read Carr since. But wow - if you want a bit of an oh wow - try it...The Alienist. I guess I'd best get back to Koontz cause I really do like him - I'd like him more if the tide didn't tug me toward Saul. I know it shouldn't, but it does.