Vampire Instinct — Joey W. Hill

As servant to vampire mistress Lady Daniela, Elisa's devotion is unwavering -- until Lady D makes it clear that the children entrusted to Elisa's care may be destroyed, if they cannot be integrated into the vampire world. Elisa's young charges are vampires of such potent desires as to belie their youth, given to a reckless bloodlust that makes their assimilation nearly impossible. But Elisa has one desperate option.

His name is Malachi, a Native American vampire who is a legend for his work with rehabilitating feline predators. With his primal understanding of the rules of survival, he is the fledglings' last hope. But it is Elisa who is feeling the heat of his irresistible animal instincts. Now, as Malachi struggles to control the children's impulses, he opens himself up to those of Elisa -- and the passion they all share for the night could seal their fates forever.