"Because Grandfather was telling me of a lot of smugglers who worked a little farther down the coast. They used to run in to one of the rivers with a small schooner they cruised in, and hide lots of stuff that they'd have to pay duty on if they brought it in the proper way. They hid it in an old deserted house near the shore and after a while would sell what they had and bring in some more. By and by the government officers got after them and caught them all. "It just set me to thinking that this might be another hiding place that was never discovered, and this bit of paper the secret plan to show where or how they hid the stuff. Perhaps they were all captured at some time, and never got back here to find the rest of their things. I tell you, we may find some treasure yet, though it probably won't be like what the pirates would have hidden." Doris was decidedly fired by the new idea. "It sounds quite possible to me," she acknowledged, "and what we want to do now is to try and work out the meaning of that queer bit of paper." "Yes, and by the way, you said quite a while ago that you had an idea about that," Sally reminded her. "What was it?" "Oh, I don't know as it amounts to much," said Doris. "So many things have happened since, that I've half forgotten about it. But if we're going up to Slipper Point, I can show you better when we get there. Do you know, Sally, I believe I'm just as much interested if that's a smuggler's cave as if it had been a pirate's. It's actually thrilling!" And without further words, they bent their energies toward reaching their destination. CHAPTER VIII ROUNDTREE'S At Slipper Point, they established Genevieve, as usual, on the old chair in the cave, to examine by candle-light the new picture-book that Doris had brought for her. This was calculated to keep her quiet for a long while, as she was inordinately fond of "picters," as she called them. "Now," cried Sally, "what about that paper?" "Oh, I don't know that it amounts to very much," explained Doris. "It just occurred to me, in looking it over, that possibly the fact of its being square and the little cave also being square might have something to do with things. Suppose the floor of the cave were divided into squares just as this paper is. Now do you notice one thing? Read the letters in their order up from the extreme left hand corner diagonally. It reads r-i-g-h-t-s and the last square is blank. Now why couldn't that mean 'right' and the 's' stand for square,--the 'right square' being that blank one in the extreme corner?" "Goody!" cried Sally. "That's awfully clever of you. I never thought of such a thing as reading it that way, in all the time I had it. And do you think that perhaps the treasure is buried under there?" "Well, of course, that's all we _can_ think it means. It might be well to investigate in that corner."