See here, Dave, I'll follow just the way this footprint points.

You get out a hundred feet or so to the right.

And we'll move as fast as we can, now." The wisdom of this plan was soon apparent, for it was Dave Darrin who discovered the next footprint.

He summoned Dick Prescott with a sharp hiss.
"Yes; all right," nodded Dick, joining his comrade and gazing down at one of the narrow bootmarks.

"But don't send a long signal again, Dave.