Frostbitten (Frost Saga Book 1)

Violetta Sarisa was just going on a vacation with her family when their car is ambushed by strange looking people. She was the only survivor of the ambush but nobody should have survived that, not with how bad her wounds were.
Violetta awakens to find everything sharper and more defined than ever before. She can run fast and change her form, but that has all come at a cost; she is weakened by the sunlight and has no memories of the world around her.
Violetta must find out what has happened to her and her memories...

The song for this series is Saviour by Black Veil Brides