“The record says that we go down behind where a man can hold himself against four hundred,” exclaimed Reggie, reading from a copy of the transcript which he took from his pocket. “That appears as if the entry is in some narrow crevice between two rocks. Do you see any such likely spot?”

I looked eagerly around but was compelled to admit that I discerned nothing that coincided with the description.

So sheer was the grey limestone cliff, going down to the water, that I approached its edge with caution and then, throwing myself upon my stomach, I crept forward and peered over its insecure edge. In doing so a huge piece of rock became loosened and fell with a roar and splash into the stream.

I took careful observations, but could distinguish absolutely nothing to correspond with what the old outlaw, Poldo Pensi, had recorded.

For a full half-hour we searched in vain, until it became plain that, as we had not measured accurately the foot-paces from the Devil’s Bridge, we were not at the exact spot. We therefore retraced our steps slowly and laboriously through the tangled briars and undergrowth, our clothes suffering considerably, and then restarted from the actual base of the bridge. So completely had we been out of reckoning that at the three hundred and eighty-seventh pace we passed the spot where we had made such minute search, and continuing our way forward we halted at the four hundred and fifty-sixth foot-pace in the top of a high encampment very similar to the other, only wilder and even more inaccessible.

“There seems nothing here,” remarked Reggie, whose face was torn by brambles and was bleeding.

I gazed around and was reluctantly compelled to endorse his statement. The trees were large and shady where we stood, some of them overhanging the deep chasm through which the river wound. Cautiously, we both crept forward, flat upon our stomachs, to the edge of the cliff, taking that precaution as we knew not whether the edge might be rotten, and presently we peered over.

“Why, look!” cried my friend, pointing to a spot about half-way down the deep swirling stream as it came round the sudden bend, “there’s steps and a path leading down just a little higher up. And see! what’s that?”