Dead Witch in the Library — Gretchen Galway

As witches gather in San Francisco for an exclusive professional conference, a killer hunts in the shadows...When a 97-year-old witch librarian dies under suspicious circumstances, Alma is called out of her redwood forest to investigate. Unfortunately, dozens of the most powerful witches in the world are also in the city for a conference—and when they aren't killing each other, they're insulting or threatening Alma.Forced to defend her pride as well as her life, Alma follows a trail of clues that suggest anyone could be a killer. As hexes fly and opponents both fae and human swarm around her, Alma unravels her most elaborate magical mystery yet.