His last words, however, and, more than his words, the tone in which he spoke, had given me the first definite clue of the many for which my curiosity searched. It was certainly on behalf of the girl, whom I only knew as Helen, that Dick had undertaken his arduous errand, and it was no less certain that just for that reason Lieutenant Clutterbuck had refused to meddle in the matter. I recognised that I should get no advantage from persisting, but I kept close to his side that day waiting upon opportunity. We dined together at Locket's, by Charing Cross; we walked together to the "Cocoa Tree" in St. James's Street, and passed an hour or so with a dice-box. Clutterbuck was very silent for the most part. He handled the dice-box with indifference; and, since he was never the man to keep his thoughts for any long time to himself, I had no doubt that some time that day I should learn more. Indeed, very soon after we left the "Cocoa Tree" I thought the whole truth was coming out; for he stopped in St. James's Park, close to the Mall, which at that moment was quiet and deserted. We could hear a light wind rippling through the leaves of the poplars, and a faint rumble of carriages lurching over the stones of Pall Mall. "It is very like the sound of the sea on a still morning of summer," said he, looking at me with a vacant eye, and I wondered whether he was thinking of a tangled garden raised above a beach of sand, wherein, maybe, he had walked, and not alone on some such day as this two years ago. We crossed the water to the Spring Gardens at Vauxhall, where we supped. I was now fallen into as complete a silence and abstraction as Clutterbuck himself, for I was clean lost in conjectures, I knew something now of Adam Mayle and his son Cullen, but as to Helen I was in the dark. Was her name Mayle too? Was she wife to Cullen? The sight of Clutterbuck's ill-humour inclined me to that conjecture; but I was wrong, for as the attendants were putting out the lights in the garden I ventured upon the question. To my surprise, Clutterbuck answered me with a smile.