Stone Cold Crone: Magic and Mayhem Universe - Game of Crones, #1

The power of three isn't what it used to be. Violet likes living as a Crone. Even though her nearly toothless smile looks like a Halloween pumpkin carving gone wrong, she will never regret making her Crone bargain with Hecate. She hopes her centuries-old coven of three from Salem doesn't have regrets either, but she rarely knows what Listeria and Katherine really think. Being the oldest and the only natural witch among them, her coven witches mostly enjoy giving Violet a hard time.
Normally, she's fine with being the butt of their jokes, but a blast from the past is back to haunt them. And that's no joking matter.