“He’s in town for the moment, but we are moving him to the North of England, though I don’t think there is any danger to him, now that Barberton’s letters are in our possession. They would have killed him yesterday to prevent our handling the correspondence. To-day I should imagine he has no special importance in the eyes of Oberzohn and Company. And here we are!” Mr. Washington got out stiffly and was immediately admitted by the butler. The three men went upstairs to where George Manfred was wrestling with a phase of the problem. He was not alone; Digby, his head swathed in bandages, sat, an unhappy man, on the edge of a chair and answered Leon’s cheery greeting with a mournful smile. “I’m sending Digby to keep observation on Oberzohn’s house; and especially do I wish him to search that old boat of his.” He was referring to an ancient barge which lay on the mud at the bottom of Mr. Oberzohn’s private dock. From the canal there was a narrow waterway into the little factory grounds. It was so long since the small cantilever bridge which covered the entrance had been raised, that locals regarded the bridge floor as part of the normal bank of the canal. But behind the green water-gates was a concrete dock large enough to hold one barge, and here for years a decrepit vessel had wallowed, the hunting-ground of rats and the sleeping-place of the desperately homeless. “The barge is practically immovable: I’ve already reported on that,” said Leon. “It certainly has that appearance, and yet I would like a search,” replied Manfred. “You understand that this is night duty, and I have asked Meadows to notify the local inspector that you will be on duty—I don’t want to be pulled out of my bed to identify you at the Peckham police station. It isn’t a cheerful job, but you might be able to make it interesting by finding your way into his grounds. I don’t think the factory will yield much, but the house will certainly be a profitable study to an observer of human nature.” “I hope I do better this time, Mr. Manfred,” said Digby, turning to go. “And, if you don’t mind, I’ll go by day and take a look at the place. I don’t want to fall down this time!” George smiled as he rose and shook the man’s hand at parting. “Even Mr. Gonsalez makes mistakes,” he said maliciously, and Leon looked hurt. Manfred tidied some papers on his desk and put them into a drawer, waiting for Poiccart’s return. When he had come: “Now, Mr. Washington, we will tell you what we wish you to do. We wish you to take a letter to Lisbon. Leon has probably hinted something to that effect, and it is now my duty to tell you that the errand is pretty certain to be an exceedingly dangerous one, but you are the only man I know to whom I could entrust this important document. I feel I cannot allow you to undertake this mission without telling you that the chances are heavily against your reaching Portugal.”