Gabriella Hewitt - Out of the Shadows

When the last shadow warrior falls, so will all humanity.
With each demon he vanquishes in service to the Aztec sun god, Tomas fulfills his duty to defend humankind—and surrenders another piece of his humanity to his wolf spirit. All hope seems lost until a mission leads him to the door of the one thing he thought he’d never find…his spirit mate. The only woman who can save him from oblivion.
When Carolina hears the wolf’s howl, it pierces the very core of her lonely heart. Yet she dare not answer. As the last guardian of her land and the secret it contains, she is haunted by the mistake that cost the lives of her family. Never will she repeat that mistake, especially with a warrior who is more beast than man.
Chasing away the demon is easier than breaching the barriers around the heart of the young woman who possesses a strange power over water—and his very soul. But if they are to survive the night, he must convince her they are destined to stand together.
Or not at all.
Warning: Contains a hero in a losing battle to control his inner beast and a heroine with the strength to tame him. Epic battles and dark secrets liberally spiced with destined love culminate in a fight for all humanity.