Blood Lust

A demon assassin is sent to destroy Marcus Verano and his loyal friends - both human and vampire, but his plans are thwarted when he falls under the spell of the blood lust cast by Andrew Berés - vampire.
Tommy Cordain and his vampire lover, Andrew Berés, have been living together for several months. For obvious reasons Tommy has kept his relationship with Andrew as much of a secret as he can, especially among his fellow fire fighters. But when a vengeful demon invades their lives, taking over Tommy’s body and lusting after Andrew, all that changes.
Lord Kardis, the ruler of the Underworld, is out to exact revenge on Marcus Verano and his friends for foiling his plan to take over the world through a demon Pope. He sends Dakar, his right hand man, to kill Marcus and any vampire allied to him, but Dakar’s plans go awry when he meets Andrew and decides to do that which is forbidden - mate with a vampire.
Disgraced, his thoughts of revenge now include Lord Kardis himself, and he raises an army to overthrow Kardis, then defeat Marcus and claim Andrew for his own. But Dakar has reckoned without the combined forces of Tommy and his vampire and human friends who will stop at nothing to defeat Dakar and his demon horde.
Reader Advisory: This book is a continuation of the novel Blood Lure in the My Vampire and I series