Book excerpt: Fast on the fins of Attack of the Shark-Headed Zombie is Bill Doyle's second tale of magic and mayhem. Mr. Cigam has a new job for Keats and Henry. All they have to do is capture one little slug in the Purple Rabbit Supermarket. Sounds easy, right? Wrong! First, the slug isn't so little. Second, there's way more than just one. And to top it off, the supermarket has gone all kooky—Mr. Cigam's mixed-up magic has swirled down every aisle! There are pests in the produce and an angry snowman in frozen foods. Can Keats and Henry clean up this supermarket mess?