Vampire Slave 2 (Yaoi). Vampire Slave, #2

Thalos, the world's oldest vampire, and Dusty, the leader of the vampire hunters, must work together to destroy the insidious vampire Johann. Thalos felt a sublime attachment to Dusty ever since he marked him as his servant when he was a child. Dusty grew into a beautiful man Thalos can't help but desire. He thinks it fate that they're united at a time when he seeks peace between the hunters and vampires.
The fact that Dusty is under Thalos' spell makes things even sweeter. Working with a sworn enemy causes strife for both vampire and hunter. Thalos needs to retrieve a tool from a sacred island that only a mortal can reach. However, it's important to vampirekind that the hunters never learn about this island. His only choice is to put Dusty in a trance. Thalos can't stand the idea of betraying Dusty's trust.
The fact that Dusty admits he plans to eventually kill Thalos isn't helping matters.