"Cap'n Van Dyck's all right, only he's too dum hardheaded," he confided. "Picked up his 'tween-decks lackeys in New York an' Havana. Don't like the looks o' some on 'em. If you're a friend of the Cap'n's, you keep a weather eye on that slick lookin' yaller boy that waits on table in the dinin'-saloon."

"How am I to keep an eye on him?" I asked.

"When you're eatin' with the folks, you keep 'em from talkin' about things that yaller boy hadn't ought to hear," he bit out, and with that he left me.

Here was a little mystery on our first day at sea. What was it, in particular, that the mulatto serving boy shouldn't hear? My mind went back to the talk of the previous evening, across the table in the dining-room of the New Orleans hotel. Now that I came to analyze it, I realized that it had been only cursorily explanatory on Van Dyck's part. While he seemed at the time to be perfectly frank with me, it occurred to me now that I had all along been conscious of certain reservations. A winter cruise in the Caribbean; for the ship's company a gathering of people whom he had threatened to know better before the cruise ended; these were about the only definite objects he had set forth.

But two things were pretty plainly evident. Goff was deeper in Van Dyck's confidence than I was; and, beyond this, the sailing-master was making the mistake of thinking that I knew as much as he did. It was no great matter, I thought. If the mulatto under-steward needed watching, I'd watch him, trusting to the future to reveal the reason—if any there were—why he should be watched.

Making my way to the awning-sheltered after-deck lounge, which was still untenanted, I picked out the easiest of the wicker chairs and sat down to fill my pipe for an after-breakfast smoke. Before the pipe had burned out, Ingerson put in his appearance, lighting a black cigar as he came up the cabin stair. If I had been free to select, he was the last man in our curious assortment whom I should have chosen as a tobacco companion, but short of a pointed retreat to some other part of the ship, there was no escape.

"Hello, Preble," he grunted, casting his gross body into a chair. "Monopolizing the view, are you? Seen anything of Madeleine?"

"Miss Barclay hadn't appeared when I breakfasted," I returned; and if I bore down a bit hard on the courtesy prefix it was because I hated to hear Madeleine's Christian name come so glibly off his tongue.

"How many days of this are we in for?" was his next attempt.