Butterfly - Michelle Levigne - Bog

Beth considers herself a geek, one of the invisible and awkward in her school, too smart for her own good as part of the Gifted and Talented program. During a summer internship at a government weather station, she notices strange weather patterns. The storms remind her of the ones when she was brought to Earth by the Hounds of Hamin. Remembering she's a member of the Hunt, Beth sets out to remake herself, to be ready when the gathering of the Hunt occurs.
After she returns to school in the fall, she's a new person, physically and mentally, and she attracts the attention of another member of the Gifted and Talented program. Tommy DiCorsi is supposedly one of the "bad boys" in town. As their friendship grows, Tommy protects her from trouble and learns about the Hounds and the Hunt. Beth learns he isn't at all what he appears either. Another member of the Hunt shows up, changing both their lives forever.