Summary (from Goodreads):
Dimitri gave Rose the ultimate choice. But she chose wrong...
After a long and heartbreaking journey to Dimitri's birthplace in Siberia, Rose Hathaway has finally returned to St. Vladimir's and to her best friend, Lissa. It is nearly graduation, and the girls can't wait for their real lives beyond the Academy's iron gates to begin. But Rose's heart still aches for Dimitri, and she knows he's out there, somewhere.
She failed to kill him when she had the chance. And now her worst fears are about to come true. Dimitri has tasted her blood, and now he is hunting her. And this time he won't rest until Rose joins him... forever.