By Stuart Gibbs, Author. For once, operations at the enormous zoo/theme park appear to be running smoothly (except for the occasional herring-related mishap in the penguin exhibit) and Teddy Fitzroy is finally able to give detective work a rest. But then a local lion is accused of killing a famous dog—and the dog’s owner, an inflammatory radio host, goes on a crusade to have the cat declared a nuisance so it can be hunted. But it looks like the lion might have been framed, and a renegade animal activist wants Teddy and Summer to help prove it. Soon, Teddy finds himself wrapped up in the middle of his most bizarre, hilarious, and dangerous case yet. For ages 8 and up.