I thought you read the Temeraire series by Naomi Novik (http://www.naominovik.com/index.cgi?pagetype=writing). It's not exceptionally popular, though it does well for itself, and hence the squee upon (as I thought) a Temeraire fan in CM fandom. The Temeraire books have a lot of the same themes as Criminal Minds (particularly the inability of the law to construct perfect social justice, and the matter of conscience and loyalty), and the main human character, Will Laurence, is much like Hotch. Only Hotch is more centered and stable.

DragonLady