“A sea of flame is common enough in some quarters,” said Wesley. “I myself have seen the Atlantic palpitating like a furnace, and our ship dashed flakes of fire from the waters that were cloven by her cut-water. But the sounds which you say you heard—think you not that they came from a distant thunderstorm?”

“Likely enough, sir, likely enough,” replied the man after a pause; but he spoke in a way that assured Mr. Wesley that he knew very well that the sounds had not come from a thunderstorm, however distant. He had had plenty of experience of thunderstorms, near at hand as well as far off.

“Or Admiral Hawke's ships—might not some of the Admiral's fleet have come within a mile or two of the coast and discharged their carronades?” Wesley suggested.

“Ay, sir, the boom of a ship's gun carries a long way on the water,” said the fisherman, but in a tone that suggested graver doubt than before.

“'Tis clear you are convinced that what you heard was stranger than either thunder or gunpowder,” said he.

“Nay, sir, what I am thinking of is the sudden uprise of the sea,” said Polwhele. “Without warning our smack began to sway so that the mast well-nigh went by the board, albeit there was ne'er a draught o' wind. And there was summat besides that I kept back from all the world.”

“A greater mystery still?” said Wesley.

“The biggest of all, sir; after the last rumblings my mates thought that we had been long enough anchored on the fishing bank; so we got in the grapple and laid out sweeps to pull the smack to the shore.”

He made another pause, and looked into the face of his auditor and then out seawards. He took a step or two away and stood thoughtfully with pursed out lips.

“And then?” said Wesley.