2. THE TIGER OF SAN PEDRO A cold and melancholy walk of a couple of miles brought us to a high wooden gate, which opened into a gloomy avenue of chestnuts. The curved and shadowed drive led us to a low, dark house, pitch-black against a slate-coloured sky. From the front window upon the left of the door there peeped a glimmer of a feeble light. “There’s a constable in possession,” said Baynes. “I’ll knock at the window.” He stepped across the grass plot and tapped with his hand on the pane. Through the fogged glass I dimly saw a man spring up from a chair beside the fire, and heard a sharp cry from within the room. An instant later a white-faced, hard-breathing policeman had opened the door, the candle wavering in his trembling hand. “What’s the matter, Walters?” asked Baynes sharply.