Heart of Ice

Mia Frisk is a loner. She loves reading and is talented when it comes to writing. Her heart is golden.
She is also half animal.
The power to shape-shift into any animal generated so much power and control, that it came from a different power of magic. She is fully in control--until one night.
A full moon comes one night, and the next, Mia finds herself as a suspect for three murders. They are all stung on their neck, and the blood dripping from Mia's teeth doesn't prove otherwise.
Meanwhile, a strange presence is within Mia's heart. She feels revenge, and her power to shape shift only works with anger, instead of hope. Not to mention her suddenly blue lips and almost white hair, slowly fading into the color of ice.
She's taken a new form. What happened that night, and who really is the murderer? Or maybe she is.
Maybe she's the one with the Heart of Ice.