“On your honor as a man, sir, do you know of any reason why Mr. Delavan should want to disappear, leaving behind the impression that he had been drowned?”

“G-g-good heavens, no!” shuddered the nervous one. “Want to disappear? Why Frank Delavan has every reason in the world for wanting to keep in close touch with New York, and with me, his associate in some present big deals.”

“Then, if he has disappeared, as seems evident, it must have been through the compulsion of some other parties?”

“Yes—most absolutely, yes!”

“Mr. Moddridge,” pursued the “Rocket’s” young skipper, impressively, “have you any idea who those other persons are?”

Moddridge’s face worked peculiarly for a few seconds, before he replied, slowly, hesitatingly:

“I might suspect any one of a score of men—perhaps almost the same score that Frank Delavan might name under the same conditions. But I pledge you my word, Halstead, that I do not know enough to suspect any one man above all others. It would be all guess-work.”

Hesitatingly as this response had been delivered, Tom, watching his man, felt certain that Eben Moddridge was trying to speak the truth.

“Then,” said the young skipper, at last, very deliberately, “since it’s a pretty sure thing, in our minds, that Mr. Delavan wasn’t drowned through accident, there can’t be much sense in trying further to find his body. Instead, our search must be after those who may be holding him, against his will, aboard some craft in these waters.”

Joe, listening nearby, nodded his approval of this decision.