"Whether your guess is the right one or not, Dick, there is one thing certain: If we let those fellows go to digging around in our bullion patch, they will find what we found, and Madeleine will lose out, after all. We can't let it stand that way. What do you say?"

I had whipped out my pocket-knife and was cutting a club, or trying to, though the sapling mahogany, or whatever it was I was hacking at, was tougher than a leather whipstock.

"I'm not thinking so much about the gold," I said. "It's up to us to capture this yawl crew first, and the Andromeda afterward. Get yourself a weapon of some sort—quick!"

"Of course," he agreed at once, feeling in his pocket for the big clasp-knife which he had used for a digging tool a few hours earlier. "Something of that kind is what I meant. Shall we rush 'em when they beach the yawl? Or had we better wait a bit and see what they mean to do?"

In our excitement I think neither of us saw the absurdity of two men armed only with clubs proposing to attack seven or eight who were probably provided with firearms.

"We'd better wait," I said; but we made good in the matter of time saving by hurrying through the wood to post ourselves handily in a palmetto thicket on the southward-fronting beach edge near the place toward which the yawl, now entering the lagoon, was headed.

The dash through the wood from our observation point at the heel of the eastern sandspit seemed to me the hottest sprint I had ever made. Once more the breeze had died out, and with little or no air stirring in the open, in the forest the atmosphere was absolutely lifeless. I don't know how near the running dash came to winding Van Dyck, but when we reached the palmetto thicket the perspiration was pouring out of me in trickling streams, and I was fairly gasping for breath. There was a half-paralyzing portent in the stillness and the terrible heat. It was as if subterranean fires had been kindled under the island, and that curious back-lighting of the haze by the rising moon seemed now to have a faintly lurid glow as if it were catching the reflection of the unseen fires.

"Heavens—but this is awful!" Van Dyck muttered under his breath—from which I argued that he was suffering no whit less from the heat than I was. "If we get the weather that this is promising to give us——"

"Hush!" I whispered.

The yawl, pulled strongly by its four oarsmen, was sweeping up to the beach, skimming the surface of the lagoon like some gigantic water bug. But a moment later we found that we had miscalculated the landing place. After coming within a pebble's toss of the shore—to be the better hidden by the palm shadows, as we supposed—the helmsman swung the yawl parallel to the beach with a low-toned word to his oarsmen, and the boat drifted slowly past our hiding place, as if its crew might be scanning the forest fringe for some determining landmark.