Hamish and Duncan Cameron returned to the yacht.
"Will you go ashore now, Sir Keith?" the old man said.
"Oh no; I am not going ashore yet. It is not yet time to run away, Hamish."
He spoke in a friendly and pleasant fashion, though Hamish, in his increasing alarm, thought it no proper time for jesting. They hauled the gig up to the davits, however, and again the yacht lay in dead silence in this little bay.
The evening grew to dusk; the only change visible in the spectral world of pale yellow-white mist was the appearance in the sky of a number of small, detached bulbous-looking clouds of a dusky blue-gray. They had not drifted hither, for there was no wind. They had only appeared. They were absolutely motionless. But the heat and the suffocation in this atmosphere became almost insupportable. The men, with bare heads, and jerseys unbuttoned at the neck, were continually going to the cask of fresh water beside the windlass. Nor was there any change when the night came on. If anything, the night was hotter than the evening had been. They waited in silence what might come of this ominous calm.
Hamish came aft.
"I beg your pardon, Sir Keith," said he, "but I am thinking we will have an anchor-watch to-night."
"You will have no anchor-watch to-night," Macleod answered slowly, from out of the darkness. "I will be all the anchor-watch you will need, Hamish, until the morning."
"You, sir!" Hamish cried. "I have been waiting to take you ashore; and surely it is ashore that you are going!"
Just as he had spoken, there was a sound that all the world seemed to stand still to hear. It was a low, murmuring sound of thunder; but it was so remote as almost to be inaudible. The next moment an awful thing occurred. The two men standing face to face in the dark suddenly found themselves in a blaze of blinding steel-blue light, and at the very same instant the thunder-roar crackled and shook all around them like the firing of a thousand cannon. How the wild echoes went booming over the sea!