The Ghost Town Forest. Moon Over Marisol, #1

A nine-hundred-year-old witch walks into a ghost town. It's not a joke - it's her community service assignment. Marisol has been doing these monthly gigs for centuries: show up under the full moon, fix something broken, don't kill more than three people. Simple rules. She mostly follows them. This time the moon drops her in a dead mining town in the middle of nowhere. The buildings are rotting. The ghosts are restless.
Something in the old forest doesn't want her there. She has thirty days, a limited magic toolkit, and an immortal orange cat named Tibby who keeps dying and coming back. Tibby is not helpful in the traditional sense. But he's unkillable, and sometimes that's enough. A warm, funny fantasy about impossible assignments and the stubborn impulse to help. For readers who love Terry Pratchett, cozy fantasy with teeth, and cats who refuse to stay dead.
Each book in the Moon Over Marisol series is a complete adventure. Start here or anywhere.