I came to the place where the tunnel forked and as before I took the left-hand branch and came to the shaft that led down. Down this I went, listening for the roar of the river, but not hearing it. Again the darkness shut in about the shaft, so I was forced to have recourse to my electric torch again, lest I lose my footing and plunge to my death. Oh, I, John O'Brien, am not nearly so sure-footed as was I, Conan the reaver; no, nor as tigerishly powerful and quick, either.