“You would not put back, then, after seeing these lights?”

“Not likely, with the orders we’ve got, sir,” said the master; and the men rowed on, and in due time reached the cove, where all was perfectly quiet, the tide falling, and as they landed quite a noisy tramp had to be made over the fine pebbles, in which the men’s feet sank.

A couple of men were left in charge of the boats, the others were formed up, and, after passing the cottages of the few fishermen of the place, the party struck off for the top of the cliffs, to follow the rugged, faint track which was more often lost, and the arduous tramp was continued hour after hour, till, partly from the schooner’s lights, partly from his idea of the run of the coast, the late prisoner began to calculate that they must be approaching the land side of the large cliff.

It had been a terrible walk in the darkness, for the cliff tops were as if a gigantic storm had taken place when that part of the coast was formed, and a series of mountainous—really mountainous—waves had run along and became suddenly congealed, leaving sharp-crested hill and deeply grooved valley, which had to be climbed and descended in turn, till the men vowed that the distance was double what it would have been by road, and they certainly were not exaggerating much.

It was only here and there that the party had been able to follow the edge of the cliff. For the most part prudence forced them to keep well in, but at times they had some arduous climbs, and walked along the sides of slopes of thin short grass, covered with tiny snails, whose shells crushed beneath their feet with a peculiar crisp sound; and had it been daylight, the probabilities were that they would have given these risky spots a wider berth.

“Call a halt, Gurr,” whispered Archy at last; and it was done. Then, giving the master his ideas, the men were allowed a few minutes’ breathing space before being formed in a line, with a space of a few yards between the men, one end of the line being close to the edge of the cliff, the other some distance inland.

In this way the men were instructed to walk slowly on, scanning every depression and clump of bared stone carefully, and at a word uttered by the man who felt that he had found any place likely to prove to be an entrance to a cave or quarry, all were to halt, the word was to be passed along, and the officers were to examine the place before the line went on again.

The plan was good, and the long line swept slowly along, the halt being called soon after they had started, but the stoppage was in vain, the midshipman and Gurr finding before them only a rough piled-up collection of stones from which the earth had in the course of ages crumbled or been washed away.

On again in the darkness, the officers pacing along portions of the line to urge on the men to be careful, and warning those near the cliff edge.

The advice was needed, for all at once, just as Archy was leaving the edge, there was a faint cry; the halt was called, and the young officer, closely followed by Dick, went quickly to the spot from whence the cry had come.