Purrfect Magic (Whisker Witchcraft, #1) by Samantha Coville
This is a cute, short, lighthearted fantasy. Eighteen year old Harper Bishop got into the prestigious Jourdemayne Academy of Witchcraft easily because her parents are famous witches and she is famous for being their daughter as well as for her own fashion sense. She begins by not attending her college classes until she hears kittens calling her and students begin dying. Now it is up to Harper to find out who is killing the students and stop them.