Flaming Snowflakes: a Rise of The Guardians fan fiction

Adopted by rich parents, Serephina Flamecaster had everything. But there was only one thing that she ever wanted: her parents' love. She was a lonely girl until she met a boy, Jack Frost, who claims to be a Guardian. Everything was better with him, but not until she gets chosen by the Man in the Moon.. and when Pitch Black's son came to get his revenge for his father's death.