Drawing out one of the chalk-tipped arrows to its head, he took a careful aim and let fly. The bow twanged, and immediately a faint thud told the expectant listeners that the shaft had struck very near the mark.

“That’ll make a good splash of chalk wherever it has struck,” said the marksman approvingly, fitting another arrow. But on the twang of the bow there followed a metallic clink instead of the softer thud of the first missile.

“That bit of chalk’s come off,” said Renshaw. “However, let’s try again.”

This time the result seemed satisfactory. Again and again was it repeated until half a dozen arrows had been shot away.

“That’ll put half a dozen chalk splashes round the Eye, or as near it as possible, for our guidance at daybreak,” said Renshaw, approvingly. “Now we’ll drop a white flag or two about.”

Fixing small strips of rag, well chalked, to the butt-ends of several more arrows, he shot them away, one after another, in the direction of the first.

“We’ll go back now, and get out our gear. We can’t do anything before daybreak. The place may be easy to get down into on one side, or it may be well-nigh impossible. But, hang it all, Sellon, there ought to be no such word for us as impossible with that in front of us.”

Once more they turned to look back, as though unwilling to go out of sight of the marvel, lest it should elude them altogether. Opposite, the misty loom of cliffs was now discernible, and between it and them, down in the shadowy depths, that flashing star still shone clear in its green scintillations.

Dawn rose, chill and clear, upon the endless tossing mountain waste. But before the night silvered into that pearly shade which should preface the golden flush of the sunrise, our two adventurers, loaded with all the implements of their enterprise, stood waiting on the spot where Renshaw had left his mark on first making the discovery.

Then as the lightening earth began to unfold its mysteries, they took in the whole situation at a glance. Standing with their backs to the precipitous cock’s-comb ridge, they looked down upon the terraced second summit of the mountain. But between this and where they stood yawned a crater-like rift. An ejaculation escaped Renshaw.