Which Witch is Which‪?‬

San Francisco's only PI who can see the things that go bump in the night is about to get bumped—hard.
Twenty years ago, a little old witch named Nana hired a wet-behind-the-ears Tony Mandolin to break up a protection racket. He did. She paid him in potions that have saved his bacon more times than he can count, then vanished—along with the entire alley her shop sat in. Now Nana's back, looking exactly the same, acting like two decades is just a long weekend, and Tony's past is slamming into his present at full speed. High-end restaurants are dropping dead patrons all over again—same deadly floral poison, same panic in the kitchens, except this time there are no demands, no blackmail, and no obvious suspects.
Then a city bus gets ripped open by a very irritated, very magical, house-sized sea lion that seems to have Tony's name on its hit list. With his drag-queen-turned-business-partner Frankie, a cranky wizard who'd rather zap first and ask never, and a crime lord who just wants his favorite chefs to stop dying, Tony has to figure out which witch is which—before the next corpse on the floor is his. Snark, sorcery, sourdough, and supernatural sea lions. Just another week in Fog City.