Dark Secret Dark Series, Book 12.

Meet a savage hunter from the darkest jungles and the beautiful prey he'll never let escape in this sensual Carpathian novel from #1 New York Times bestselling author Christine Feehan. Rafael De La Cruz has spent centuries hunting vampires with his brothers, and with each passing year his capacity to feel emotions has grown weaker and weaker until finally there's barely even a memory left-until only sheer willpower keeps him from turning into...