Sherlock has been kidnapped! Now he’s on a ship bound for China… At the port of Shanghai, Sherlock finds a mystery awaiting him. How can three men be bitten by the same poisonous snake in different parts of town? What exactly is the rat-like creature that is following him? Can he decode the message that’s hidden in a diagram like a spider’s web? And what has all of this got to do with a plot to blow up an American warship? To solve the mystery, Sherlock must brave terrors greater than any he has faced before…