Vampire's Desire. Guardians, #6

In a world consumed by darkness, Lucan battles to save himself from the very power he wields. He finds himself torn between his trust issues and an undeniable truth-he must join forces with the sister of his sworn enemy. Bound by an ancient prophecy that foretells her as the savior of humanity's brutal war, Lucan's resistance wanes as shadows threaten to consume them all. Locked away in her brother's torturous dungeon, Sabin endures relentless torment.
Amidst her despair, a glimmer of hope keeps her going-the belief that a destined vampire will be her salvation. Despite Lucan's refusal to accept their fated connection, Sabin knows their unity is vital for the world's survival. Two opposing forces collide, one draped in darkness, the other radiating light. Their intertwined existence becomes a lifeline, for without each other, they are destined to fall prey to impending evil.
As time ticks away and Sabin's ability to fulfill the prophecy diminishes with the absence of the Phoenix God, an unthinkable sacrifice may be their only hope.