Lifting down a small fir that closed a gap in the wall, they pushed the motorcycle across a strip of heath and against a pile of turf; and then they stopped to look about.

The light was rapidly going and the wind was falling. In front lay a stretch of moor, seamed by black peat-hags, in some of which water glistened; beyond the moor rough heather-covered slopes ran up to the black hillcrest. A curlew whistled overhead, and the sharp cry of a grouse rose from the darkening heath. Except for this, it was very still and the landscape looked strangely desolate. Not far ahead a patch of roof showed faintly among some stunted ash-trees.

"A cothouse," said Andrew in surprise.

"We'll look at it," Whitney answered, and started for the building.

One end had fallen down, but half the thatch remained upon the bending rafters. The rest had gone, and it was plain that the cot had been abandoned for a long time. Crossing a ditch by a rotten plank, they stood knee-deep among withered nettles at the door, and the ruined walls struck a mournful note in the gathering dark.

"There's a track here," said Whitney. "I guess the sheep go in."

He struck a match as they entered, and, avoiding stones and fallen beams, they made for the door of an inner room. When they reached it, Whitney struck another match, and smiled as he held it up, for the light fell upon a single-cylinder motorcycle with a gun-case strapped to the carrier.

"Well," he said, "I expected this. If we cross the end of the hill going southeast, we would strike the sands somewhere abreast of the wreck?"

"Yes."

"How's the tide?"