“And you get no clue from these facts?” he asked, a trifle surprised.

I searched every corner of my mind and imagination for some inkling of his meaning, but was obliged to admit that I understood nothing so far.

“Never mind, you will later. And now,” he added, “we will go over the wood and see what we can find.”

His words explained to me something of his method. We were to keep our minds alert and report to each other the least fancy that crossed the picture gallery of our thoughts. Then, just as we started, he turned again to me with a final warning.