"I regret the necessity. I daresay you have sometimes done the same when a victim of your cleverness has come to the gallows." She got up and walked away from me, but she did not cease to watch me. I wondered if she would fire should I venture to shout. It was a long hour, but presently there came the distinct dip of oars. In spite of my unenviable position I felt excited. I thought there were two boats. Naturally there would be. The dinghy was small; crew and confederates could not have got into it. There was the rattle of oars in the rowlocks, then a man climbed on deck, others coming quickly after him, and in that moment Mrs. Selborne swung round and fired. The bullet struck the woodwork of the skylight close to my head. I doubt if I shall ever be so near death again until my hour actually sounds. Her arm was struck up before she could fire again, and a familiar voice was shouting: "It's all right, Wigan. The lady completes the business. We have got the lot." Christopher Quarles had come aboard with the police, those in the dinghy wearing the coats and caps the crew had worn, so that any one watching on the yacht for their return might be deceived. The prisoners were left in the hands of the police, and a motor took Quarles and myself back to Folkestone. He told me the whole story before we slept that night. The lonely house on Romney Marsh had been bought by Wibley some months ago in the name of Reynolds. He had let it be known that, after certain alterations had been made, he was coming to live there, so it was natural that a couple of men, looking like painters, should presently arrive and be constantly about the place. If three or four men were seen there on occasion no one was likely to be curious. Watching Wibley when he came down to Hythe, Quarles found he had a liking for motoring on the Dymchurch Road. He saw him pull up one morning to speak to a man on the roadside. He did the same thing on the following morning, but it was a different man, and Quarles recognized young Squires. Squires afterwards went to this empty house, and Quarles speedily had men on the Marsh watching it night and day. It looked as if the house were the gang's meeting-place. Either another coup was being prepared, or an escape was being arranged. During a hurried visit to town the professor had seen my letter to Zena, and this had given him a clue.