Revelations by KC Freeman

Heaven and Hell agree on one thing—the prophecy must be stopped at any cost.

Greylyn’s job as a guardian angel was simple: save humans from their own inner demons and the real ones. At least it was until a fallen archangel showed up demanding she fulfill a mysterious prophecy. Now she must race against the clock to unravel the prophecy while searching for a way to thwart it, as well as the impossible attraction to the golden-eyed dark guardian who haunts her dreams.
For centuries, the dark guardian Kael has stopped at nothing to protect Greylyn from the powers of Heaven and Hell, and even from himself. He will not allow the prophecy to take her away from him now.
From the heart of America’s capital city to the swamps of a small military station town to the summit of the Tibetan mountains, Greylyn’s quest leads her to the precipice of Hell and into the darkness within her own heart to reveal a divine foretelling and the truth buried in her soul.