He dropped his arms and stood there impatiently. The water beneath me was a green colour, full and sullen, but there were little eddies which I could not understand considering the width of the channel. Then, with a shock which, notwithstanding the hot sun, brought a shiver of fear through my body, I discovered the truth. Scarcely three feet under water was a long line of jagged rock. I turned over on my back and held up my hand.
"Arthur!"
"Get out of the way, will you?" he shouted. "I'm coming."
His hands were already upraised. There was no time for anything but the truth.
"Don't be a fool," I answered. "There's a submerged rock right across here. You couldn't miss it. Climb down, do you hear?"
His arms fell to his sides. For a single moment he stood there, immovable. Not even his youth, his bathing costume, and the clear background of blue sky and sunlit air could lend him any grace of form or outline. He seemed, indeed, from his short neck and hunched shoulders, as he turned away, almost deformed. I looked all around. There was no sign anywhere of Duncombe. I raised my voice and shouted.
"Hello, Duncombe!"
I heard a splash, as though he had slipped off the ledge of the rock behind me. Presently he came swimming round the corner.