Be Careful What You Witch For by Dawn Eastman

The highlight of this year's fall festival in Crystal Haven is a bonfire with a witch’s cauldron resting over it. Clyde’s best friend, Diana, leads a ritual to divine the future, but it seems no one foresees that one of their own will drop dead—or that Diana will be a prime suspect.
 
Clyde already has her hands full with her eccentric family, runaway nephew, and burgeoning secret romance with a hunky homicide detective. But after another coven member is attacked, Clyde suspects there’s a witch hunt afoot and focuses her psychic and sleuthing skills to clear her friend’s name and catch a killer.