Guardian Unraveled — Georgia Lyn Hunter

From the scorching pits of Tartarus, a warrior emerges with a deadly need for more than vengeance…

A loner, Dagan, lives with an inexorable thirst he's kept hidden for eons, even from his fellow Guardians. Until he meets a beautiful, maddening human who awakens in him a hunger that shakes him to his very core, and threatens to shatter his tightly erected shields, exposing his dangerous secret. And wanting her is a path leading to destruction.

Driven to find her missing mother in a shadowy world, Shae Ion refuses to be sidetracked. When she becomes the target for a sinister force, a sinfully sexy and utterly impossible immortal abducts her, and he'll stop at nothing to keep her safe.
Stuck in an isolated place with the reclusive Guardian who allows no one close, Shae struggles to control her burgeoning powers, and is unprepared for the tangled emotions he stirs in her. But passion has a way of obliterating barriers.

However, the road to happiness is strewn with treachery. Nothing is sacred or safe. When a ruthless old enemy resurfaces, and comes after Shae, they are drawn into a terrifying, supernatural battle. And not even Dagan, a lethal immortal warrior who'd lay down his life for her, can save her now…