“I’m not so sure o’ that,” said he; “if she’s a whaler like the one we came south in, lad, she’ll not trouble herself with us.”

Billy looked very grave, and his heart sank.

“My only consolation is that she looks more like a man-o’-war than a whaler.”

“I wish we had a big gun to fire,” exclaimed Billy, looking round in perplexity, as if he half hoped that a carronade would spring up out of the ground. “Could we not make a row somehow?”

“I fear not,” said Gaff despondingly. “Shoutin’ is of no use. She’s too far-off for that. Our only chance is the flag.”

Both father and son stood silent for some moments earnestly gazing at the ship, which was by this time nearly opposite to their flagstaff, and seemed to be passing by without recognising the signal. This was not to be wondered at, for, although the flag was visible enough from landward, being well defined against the bright sky, it was scarce perceptible from seaward, owing to the hills which formed a background to it.

I know what’ll do it!” exclaimed Billy, as he leaped suddenly to one side. “Come along, daddy.”

A few yards to one side of the spot on which the flagstaff was reared there was a part of the precipice which sloped with a steep descent into the sea. Here there had been a landslip, and the entire face of the cliff was laid bare. At the top of this slope there was a great collection of stones and masses of rock of considerable size. At various points, too, down the face of the steep, masses of rock and débris had collected in hollows.

Billy now went to work to roll big stones over the edge of this cliff, and he did it with such good-will that in a few minutes masses of a hundred weight were rolling, bounding, and crashing down the steep. These, in many cases, plunged into the collections of débris, and dislodged masses of rock that no efforts of which Billy was capable could have otherwise moved.

The rattling roar of the avalanche was far more effective than a salvo of artillery, because, besides being tremendous, it was unceasing, and the result was that the vessel ran up a flag in reply to the strange salute. Then a white puff of smoke from her side preceded the roar of a heavy gun. Immediately after, the vessel’s head came round, and she lay-to.