Watcher Unfeigned - Watchers of the Gray, #7

In the shadowed streets of Toronto, there exists a garrison of soldiers like no other-nine immortal warriors, half-Archangel/half-human, living unknown amongst the city, defending humanity from the Daemons of the Hell realm. After millennia of death and violence, Lady Divinity has granted them reward for their servitude, a gift that makes her mighty warriors stronger than ever-Love. Brennus, the ancient Celt, is living the life, thankful that his sexual preference gives him a pass on the whole Nephilim mating madness.
His mistake is thinking Lady Divinity defines love. His reward is finding out what true courage is-allowing two hearts to become one.