If that part was made up, then probably the entire tale was only a “fairy story,” told for a purpose. That purpose was to get aboard the houseboat, for some reason or other. Well, he had been aboard for some weeks now, and nothing had happened, only he seemed to like it so well he wanted to remain with the boys until they reached New Orleans.
There was something about this desire on his part that impressed Frank. If, as he now actually began to believe, Luther Snow was really the Marcus Stackpole of whom Uncle Felix had particularly warned them, why had he not picked up the hidden treasure Jerry was always talking about, and disappeared long ago?
Frank somehow began to believe that, after all, there was no secret _cache_ aboard the boat which might contain valuables in the shape of papers or jewels. Jerry liked to think there was, but really they had not a peg on which to hang such an idea; except that queer Uncle Felix seemed to want to keep strangers off the boat, and particularly a man he seemed to dislike very much, one Marcus Stackpole.
Frank was even now busying himself with trying to lay some little trap by means of which he might learn the truth.
“I’ll take him unawares some time,” he was saying to himself, as he stood on deck that afternoon, after they had tied up, with the sunlight around him, and looked out from under the shady branches of the tree to which the boat was fast; “and spring that name on him—call him Mr. Stackpole. If he can look me in the eye, and never show a sign, I’ll have to think I’m mistaken; but all the same, off this boat he goes at Memphis, if I have to get an ambulance, and send him to the hospital.”
Bluff was seated, as he often might be seen, on the rail of the boat; while Will pottered over the tangled fish lines, for Jerry had taken a notion to put a new roll of film in the little camera, and was even then rubbing it up. Luther Snow, a blanket about his shoulders, sat near by, watching it all in a pleased sort of way.
“Time was when I could stand anything, boys,” remarked the old man as he gathered this covering closer to his body; “and I reckon I’ve been through considerable all over the wide world, for a man who never had a cent that he didn’t earn himself. But I’m getting a little old now, you see. I begin to feel rheumatism in my bones, and sometimes I begin to believe that my days as a rover are nearly over.”