"I'm sure I don't know," responded Bart, "only it was some one who evidently wanted to get away unobserved. Look, you can trace where he came out of the woods, approached our tent very cautiously, and then, when I frightened him, he took it on the run." This was easy to confirm by the spaces between the footprints, for when the midnight visitor had approached slowly and stealthily the marks were comparatively close together, but where he had run they were far apart.