Labbe, Marguerite MM Gay

My Heart Is Within You
Book One of the Triquetra Trilogy (M/M)

The power of heart and soul holds the key to the survival of the last of the ancient vampires. Kristair is running out of time. His race has faded away, prey to delusion and deterioration, and his only chance to live long enough to find a cure is to bind his psyche to a human vessel in a long forgotten ritual.

Kristair's chosen vessel is Jacob Corvin, a man of passionate stubbornness and fierce loyalty; he has captured Kristair's fantasies so completely that he is both the vampire's greatest strength and most crippling weakness. Drawing upon Jacob's spirit and Kristair's resolve, they each bind a portion of their souls to one other. For as long as Jacob carries Kristair's heart within him, the vampire can continue his quest.

Just when they have hope, their mission is threatened by The Syndicate, a group of younger vampires who attempt to force Kristair to teach them his secrets before he disappears like the rest of the ancients. Battling both The Syndicate's attacks and his unexpected need and love for Jacob, Kristair's strength begins to fade, forcing him to make a decision that will change his and Jacob's lives forever.
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Haunted By Your Soul
Book Two of the Triquetra Trilogy

Heartbroken by the death of his vampire lover, Jacob Corvin finds himself embroiled in the intricacies of vampire hierarchy. He is consumed with rage after Kristair's torment and death, and when The Syndicate returns he is more than ready to personally destroy every one of the power-hungry vampires.

That anger and pain cannot be soothed, because before he disappeared, Kristair transferred all his memories and a piece of his soul to Jacob. So as hard as Jacob tries to move on— he can't. Kristair's heart still beats in his chest, and Kristair's memories whisper to him.

As he gets dragged further into a war between the vampires, Jacob starts to believe he's losing his mind. Those whispers and a feeling of Kristair's presence are growing within him, and he starts a desperate struggle to retain his own sense of self and sanity. But Kristair is not so easily silenced when he's determined to return to where he belongs.
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Our Sacred Balance
Book Three of the Triquetra Trilogy

Lovers Kristair and Jacob believe they're done with the supernatural and on the road to a new life. But the supernatural isn't done with them. A stalker is targeting vampires, tearing them from their sanctuaries and leaving them to burn in the sun, and when the vampires of Pittsburgh call upon the ancient Kristair, he cannot refuse them aid despite Jacob's objections.

While their quest becomes more dangerous, tempers flare when Jacob tries to make Kristair understand the limitations of being human again. As they struggle to reach a balance between them, the other vampires become restless, eager to find the person responsible for the deaths of their own so they can vent their rage.

But the enemy is closer than they ever imagined and carries a personal grudge against them. Their mental link gone and spiritual strength halved, Jacob and Kristair must conquer Kristair's newfound helplessness and learn to communicate with each other before their enemy destroys everything they've fought so hard to win.