But the cleverest of their devices, and the most puzzling to an enemy, was that, instead of one mouth only, there were three to choose from, with nothing to betoken which was the proper access; all being pretty much alike, and all unfenced and yawning.  And the common rumour was that in times of any danger, when any force was known to be on muster in their neighbourhood, they changed their entrance every day, and diverted the other two, by means of sliding doors to the chasms and dark abysses.

Now I could see those three rough arches, jagged, black, and terrible; and I knew that only one of them could lead me to the valley; neither gave the river now any further guidance; but dived underground with a sullen roar, where it met the cross-bar of the mountain.  Having no means at all of judging which was the right way of the three, and knowing that the other two would lead to almost certain death, in the ruggedness and darkness,—­for how could a man, among precipices and bottomless depths of water, without a ray of light, have any chance to save his life?—­I do declare that I was half inclined to go away, and have done with it.

However, I knew one thing for certain, to wit, that the longer I stayed debating the more would the enterprise pall upon me, and the less my relish be.  And it struck me that, in times of peace, the middle way was the likeliest; and the others diverging right and left in their farther parts might be made to slide into it (not far from the entrance), at the pleasure of the warders.  Also I took it for good omen that I remembered (as rarely happened) a very fine line in the Latin grammar, whose emphasis and meaning is “middle road is safest.”

Therefore, without more hesitation, I plunged into the middle way, holding a long ash staff before me, shodden at the end with iron.  Presently I was in black darkness groping along the wall, and feeling a deal more fear than I wished to feel; especially when upon looking back I could no longer see the light, which I had forsaken.  Then I stumbled over something hard, and sharp, and very cold, moreover so grievous to my legs that it needed my very best doctrine and humour to forbear from swearing, in the manner they use in London.  But when I arose and felt it, and knew it to be a culverin, I was somewhat reassured thereby, inasmuch as it was not likely that they would plant this engine except in the real and true entrance.

Therefore I went on again, more painfully and wearily, and presently found it to be good that I had received that knock, and borne it with such patience; for otherwise I might have blundered full upon the sentries, and been shot without more ado.  As it was, I had barely time to draw back, as I turned a corner upon them; and if their lanthorn had been in its place, they could scarce have failed to descry me, unless indeed I had seen the gleam before I turned the corner.