"Correct," nodded Tom Reade. "Say, fellows, we are on Greg's trail!"
The enthusiasm was "catching" by this time. The little line narrowed and the Grammar School boys pressed forward, tingling with the mystery and excitement of this problem written on the face of old Mother Earth!
CHAPTER XI
DAN SEES BEARS—IN HIS MIND
In twenty minutes, studying the ground harder than any one of the five had ever scanned a problem in arithmetic, the Grammar School boys had advanced some three hundred feet. Their course had taken them into the woods on the further side of the bridle path.
"I don't see any footprints around here," half grumbled Tom Reade.
"No," Dick replied, "because the ground is hard and stony here. This isn't the place to look for prints. But we may find some other sign at any——"
"Stop right where you are!" ordered Dave excitedly.