Nightwalkers Series by Connie Hall

Although Fala Rainwater has been anointed the next "tsmishian"--a shape-shifter of unparalleled capacity--she can't help getting in the way of her own destiny. When Tumsemeha is resurrected once more, a great and glorious evil comes to devour our world and now hides among the corrupted bodies of Washington's elite. Yet only one man can get Fala close to her hidden enemy... moreAlthough Fala Rainwater has been anointed the next "tsmishian"--a shape-shifter of unparalleled capacity--she can't help getting in the way of her own destiny. When Tumsemeha is resurrected once more, a great and glorious evil comes to devour our world and now hides among the corrupted bodies of Washington's elite. Yet only one man can get Fala close to her hidden enemy....As liaison to the government's most secretive and supernatural sector, Agent Stephen Winter has just as much riding on Tumsemeha's defeat. But who is Agent Winter "really" working for? With an unreadable aura, this enigmatic warlock holds too many secrets, and Fala will need to probe their depths if she is to become the earth's Guardian and save mankind at its darkest hour... less

When murders at the hands of a mutant shifter start occurring in a rural community, Nina Rainwater knows she must put an end to it. But tell that to her arrogant abductor, who will stop at nothing to protect his family. For Kane, a seniph, believes the killer is his estranged brother. And though his quest could mean his own demise, he must first stop a prying beauty capable of destroying more than just his composure….

All her life, Takala Rainwater hoped to find the mother who'd abandoned her and her sisters. But she'd never expected the woman to be a shadowy double agent in the spy-ridden underworld. Nor did she anticipate falling for the very vampire who wanted her mother destroyed.Like his name, Striker Dark was ruthless...and the sexiest thing Takala had seen in both worlds. Her white-magic power--and her willpower--was defenseless against him... moreAll her life, Takala Rainwater hoped to find the mother who'd abandoned her and her sisters. But she'd never expected the woman to be a shadowy double agent in the spy-ridden underworld. Nor did she anticipate falling for the very vampire who wanted her mother destroyed.Like his name, Striker Dark was ruthless...and the sexiest thing Takala had seen in both worlds. Her white-magic power--and her willpower--was defenseless against him. But Takala didn't know the long-dead passion she roused in him could end her mortal life. For centuries, Striker had denied himself human blood, but now Takala had resurrected that bloodlust...and only hers would satisfy him.... less