Ingersoll swallowed a mouthful. It seemed to restore his wits. The eye of the lighthouse had changed from red to green. "It is singular," he said, "how a quality of evil can be associated with certain colors. Red means danger and possible death, while green implies a jealous love perilously akin to hate."

He had not the least notion of the incongruity of such a remark just then. He might have been making conversation for some boarding-school miss whom Yvonne had brought on a summer cruise.

The other man, puzzled, stared stolidly into the gathering gloom.

"When you're plashin' at sea on a dark night you find them colored sectors mighty useful, Sir," was all he could find to say.

Ingersoll roused himself, as though from sleep, and indeed he had been wholly unconscious of his surroundings during the last few minutes. "Oh, doubtless," he said apologetically, "I was thinking aloud, a foolish habit. You were telling me about the owner of the Stella. Carmac is the name, I think? I knew a Walter H. Carmac many years ago. He was very tall, but slightly built. Surely a man cannot change his physique so markedly in the course of, say, twenty years!"

"Well, as to that, Sir, on'y the other day I was talkin' of Mr. Carmac's size to Mr. Raymond, the gentleman with the broken arm (Mr. Carmac's secretary, he is), an' he said the guv'nor used to be thin as a lath once. P'raps it was a case of laugh and grow fat. Very pleasant gentleman, Mr. Carmac was; an' his lady too—one of the best. Excuse me, Sir, but I couldn't help starin' at your girl. She's that like Mrs. Carmac it's surprising. If anyone said they was mother an' daughter, I'd agree at once—if I didn't know different."

There was a pause. Peridot had intrusted the supply of brandy to Tollemache for further distribution. He came aft now, as careful piloting would soon be needed.

"Once we're inside, Monsieur," he said, "we'll set the men at work by turns with the sweeps. That will drive the chill away."

Ingersoll explained the scheme to the skipper, who gave it his hearty approval.

"Did the yacht belong to Mr. Carmac?" went on the artist.