Hex Hall by Rachel Hawkins

Sophie is a witch who recently came into her powers. Her father is a powerful warlock who she's never met. She and her human mother have been on the move ever since Sophie discovered her magic because her spells have a tendency to go wrong. Eventually, this leads to her being placed at Hecate Hall, a reform school for Prodigium, where she lives with other witches, shifters, and fae. One of the first things Sophie learns at her school is that there was a terrible murder there last year and all indications point to the only vampire in the school who just happens to be Sophie's roommate. As more students are attacked, Sophie tries to prove that her roommate is innocent, all the while struggling with three dark witches as enemies, a crush on the hottest warlock in school, and learning that her family history is very disturbing.

This was an excellent book. Not only is Sophie a strong character, but she's also witty and very funny. The mysteries in the story unravel in unexpected ways. I can't wait for the next book in the series! Unfortunately, there's no release date yet.