Night Pleasures

The first installment of Sherrilyn Kenyon's Dark-Hunter series, Night Pleasures.
The Dark-Hunters are ancient warriors who have sworn to protect mankind and the fate of the world is in their hands. . .
He is solitude. He is darkness. He is the ruler of the night. Yet Kyrian of Thrace has just woken up handcuffed to his worst nightmare: An accountant. Worse, she's being hunted by one of the most lethal vampires out there. And if Amanda Devereaux goes down, then he does too. But it's not just their lives that are hanging in the balance. Kyrian and Amanda are all that stands between humanity and oblivion. Let's hope they win.