middle of it dropped a smooth silken object which fell upon the table. It was another mysterious five-knotted string. CHAPTER IV CHAPTER IV IN THE WOOD IN THE WOOD Master and man stared at each other blankly. Unmistakable fear was visible in the eyes of both. And yet those two standing there face to face were supposed not to know what fear meant. There was something ridiculous in the idea that an innocent looking piece of string should produce so remarkable an effect. It was long before either spoke. Flower paced up and down the room, his thin lips pressed together, his face lined with anxiety. Master and man stared at each other blankly. Unmistakable fear was visible in the eyes of both. And yet those two standing there face to face were supposed not to know what fear meant. There was something ridiculous in the idea that an innocent looking piece of string should produce so remarkable an effect. It was long before either spoke. Flower paced up and down the room, his thin lips pressed together, his face lined with anxiety. "I cannot understand it at all," he said at length. "I thought this danger was ended." "I cannot understand it at all," he said at length. "I thought this danger was ended." "But there it is," Cotter replied. "If these people were not so clever I should not mind. And the more you think of it, sir, the worse it becomes. Fancy that message finding its way into Slater's letter. The thing seems almost impossible; like one of those weird conjuring tricks we used to see in India. And Slater is a cautious man who runs no risks. He wrote that letter in his own hand. He posted it himself, you may be sure. And from the time that it dropped into the letter-box to the time it reached my hand, nobody but the postal officials touched it. Yet there it is, sir, there it is staring us in the face, more deadly and more dangerous than a weapon in the hands of a lunatic. Still, we have got our warning, and I dare say we shall have time——" "But there it is," Cotter