The snow began to fall irregularly in patchy flakes, then gradually turned to rain. First a soft, wet mist, that dimmed the electric lights and shrouded the hotel windows; then a fine sprinkle; at last the chill rain of a winter's night. McAllister turned up his coat-collar and looked about for a cab. It was too late. He hurried hastily down the avenue. Soon a welcome sight met his eye--a coupé, a night-hawk, crawling slowly down the block, on the lookout, no doubt, for belated Christmas revellers. Without superfluous introduction McAllister made a dive for the door, shouted his address, and jumped inside. The driver, but half-roused from his lethargy, muttered something unintelligible and pulled in his horse. At the same moment the dark figure of a man swiftly emerged from a side street, ran up to the cab, opened the door, threw in a heavy object upon McAllister's feet, and followed it with himself. "Let her go!" he cried, slamming the door. The driver, without hesitation, lashed his horse and started at a furious gallop down the slippery avenue. Then for the first time the stranger perceived McAllister. There was a muttered curse, a gleam of steel as they flashed by a street-lamp, and the clubman felt the cold muzzle of a revolver against his cheek. "Speak, and I'll blow yer head off!" The cab swayed and swerved in all directions, and the driver retained his seat with difficulty. McAllister, clinging to the sides of the rocking vehicle, expected every moment to be either shot or thrown out and killed. "Don't move!" hissed his companion. McAllister tried with difficulty not to move. Suddenly there came a shrill whistle, followed by the clatter of hoofs. A figure on horseback dashed by. The driver, endeavoring to rein in his now maddened beast, lost his balance and pitched overboard. There was a confusion of shouts, a blue flash, a loud report. The horse sprang into the air and fell, kicking, upon the pavement; the cab crashed upon its side; amid a shower of glass the door parted company with its hinges, and the stranger, placing his heel on McAllister's stomach, leaped quickly into the darkness. A moment later, having recovered a part of his scattered senses, our hero, thrusting himself through the shattered framework of the cab, staggered to his feet. He remembered dimly afterward having expected to create a mild sensation among the spectators by announcing, in response to their polite inquiries as to his safety, that he was "quite uninjured." Instead, however, the glare of a policeman's lantern was turned upon his dishevelled countenance, and a hoarse voice shouted: "Throw up your hands!" [Illustration: "Throw up your hands!"] He threw them up. Like the Phœnix rising from its ashes, McAllister emerged from the débris which surrounded him. On either side of the cab he beheld a policeman with a levelled revolver. A mounted officer stood sentinel beside the smoking body of the horse.