Frostfire

Frostfire by Amanda Hocking is the stunning first installment in a tale of love, betrayal and the need to belong, the Kanin Chronicles. Will she give up her dream to follow her heart?Bryn Aven is determined to gain status amongst the Kanin, the most powerful of the hidden tribes. But as a half-blood, winning respect is a huge challenge. Bryn's almost-human community distrusts people, and those from other tribes are almost as suspect.
She has just one goal to get ahead: to join the elite guard protecting the Kanin royal family. And Bryn's vowed that nothing will stand in her way, not even a forbidden romance with her boss, Ridley Dresden. But her plans are put on hold when fallen hero Konstantin starts acting dangerously. Bryn loved him once, but now he's kidnapping Kanin children - stealing them from hidden placements within human families.
She's sent to help stop him, but will she lose her heart in the process?