PI Ivy Gamble has a twin sister who was born with magic, left in their teenage years to attend a magic boarding school, and is now a tenured teacher at another prestigious magic academy. Ivy has no magic, and suffered bitterness, jealousy and depression after her sister left and her mother died of cancer. Ivy tries to even avoid thinking about magic, or remember that it exists... until she is hired to solve a murder at the school where her twin teaches. The book's murder mystery is satisfying, something with enough quirks to keep me intrigued but enough clues that I was able to mostly solve it slightly ahead of the narrative. However, Ivy isn't a very likeable main character (she isn't mean to be) and her constant self-sabotaging and borderline alcoholism was a bit frustrating. Still, it is a unique take on the magic-school genre. If you like somewhat pulpy murder mysteries, or mysteries with supernatural twists, you will likely enjoy this.