"None of that, my lord! Hold him, Carter!" But the sergeant's warning came too late--to hold his prisoner was more that Carter could do, since, before the warning came, he was already out of his sight. A second time that evening he was to be disappointed of his prey. West was right; his lordship gave him the slip. Running down the bank, he had leapt into the water before they could stop him--indeed, so far were they from stopping him it was all the sergeant and Mr Carter could do to keep themselves from--quite unintentionally--going after him. CHAPTER XX THE HOUSEBOAT The boat hugged the shore as closely as Eric Frazer had advised; being propelled with a skill, and swiftness, considering the difficulties with which he had to contend, which at least showed that the person who had stated that his name was Arnecliffe was engaged in a task with which he was familiar. Presently its progress become slower; the sculler was endeavouring, as best he could, to make out his surroundings. "Curious how deceptive this light--if you can call it light--is; and the lightning makes it worse. Have you any knowledge of this country?" "None; I saw it for the first time this morning." "There seems to be an opening here, which might be a cut, or backwater--I believe it is. We'll try it. Look out! The trees hang over the water, and the branches are low. What is that over there? It's a houseboat; I wonder if it's the one to which your mysterious friend referred. It's dark enough. Do you know what the name of Vernon's houseboat is?" Dorothy knew nothing, and said so. "Anyhow we'll pay a call. If it's the wrong one we can only apologise." He brought the skiff alongside the sombre craft, which seemed to soar above them into the darkness. The girl landed first. "Try that door," he said. "That's it--right in front of you." She turned the handle. "It's open," she announced. "Good! Gross carelessness on somebody's part, to leave a houseboat's front door unlocked, but good for us." Tying up the skiff, he landed also. "Wait a minute: let me go in first, in case there's anyone inside." He passed through the door which she had opened. "Hollo! Anyone here?" None answered. "Seems empty; I think you may come in without running much risk of intruding on somebody's privacy." She went in after him. "I'll strike a match, so that we can see what sort of place it is we're in." He held the flickering flame above his head. "Seems to be a decent sort of apartment--living-room, I presume. If this is his property it strikes me that Mr Vernon is a gentleman who is possessed both of taste and money." The match went out. "Hollo! this won't do; we must have some light upon the subject. I can't say to you what I want to say unless I see your face--not comfortably, I can't; and I should like you to see mine as I'm saying it." "I should like to see it too."