Broomstick - The Hawthorne University Witch Series, #1

?I used to not believe in witches.  Until I enrolled in Dr. Alondra Johansen's metaphysical history class. Bryce, Alondra's super cute teaching assistant, told me my element sign is Earth. I am, in fact, a pragmatic sort of girl. My name is Cadence Hawthorne, but you can call me Katie. Darkness fell over me and my family during my sophomore year. I thought maybe Alondra could help me with my grief and visions of ghosts.
But there was this guy working with her, with a goatee and sardonic smile, who looked more like the devil than a professor. He did terrible things to my best friend, threatening my growing love for Bryce. Do you believe in ghosts? How 'bout witches? I do. See, it was at Hawthorne University that I learned all about them. Come take a look in my grimoire. I wrote it all down here in Broomstick.