The Ghosts In The Graveyard: Magic and Mayhem Universe. A Cauldron Falls Mystery, #4

When ghosts throw the party of the century, someone's bound to get dead. Again. Uma O'Reilly thought hosting a once-in-a-century ghost convention would bring elegant spirits and proper etiquette to Cauldron Falls. Instead, she gets toilet paper streamers, mysteriously solid ghosts wreaking havoc in the town square-and a terrified spirit hiding a deadly secret. Detective Sean McLeary just wants to keep the spirits contained and his divine boss from noticing he's lost control.
But when the fiery witch with experimental potions starts investigating on her own, he's torn between doing his job and following his heart straight into danger. The celebrity author everyone's dying to meet has a dark past-literally. He's spent decades stealing credit, silencing voices, and destroying lives. When Uma discovers his ghostwriter is trapped in an abusive nightmare that followed her beyond death, she'll risk everything to deliver justice.
Some ghosts deserve their eternal rest. Others deserve to be erased. A cozy paranormal mystery where ancient magic settles old scores, romance sparks between chaos, and one brave spirit finally reclaims her voice.