Wilkie Collins: "Rambles beyond Railways"

Saw the OK series The Woman in White with my wife. Had heard of Wilkie Collins before (I believe C. S. Lewis mentioned him?) but, not being a mystery fan (and never talking to anyone who'd read him), I didn't look till now. And that's also certainly why I chose the sidebar of Rambles beyond Railways (it's about his "walking trip" in Cornwall in 1850).

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Leaving Pistol Meadow, after gathering a few of the wild herbs growing fragrant and plentiful over the graves of the dead, we turned our steps towards the Lizard Lighthouse. As we passed before the front of the large and massive building, our progress was suddenly and startlingly checked by a hideous chasm in the cliff, sunk to a perpendicular depth of seventy feet, and measuring more than a hundred in circumference. Nothing prepares the stranger for this great gulf; no railing is placed about it; it lies hidden by rising land, and the earth all around is treacherously smooth. The first moment when you see it, is the moment when you start back instinctively from its edge, doubtful whether the hole has not yawned open in that very instant before your feet. This chasm—melodramatically entitled by the people, "The Lion's Den"—was formed in an extraordinary manner, not many years since. In the evening the whole surface of the down above the cliff was smooth to the eye, and firm to the foot—in the morning it had opened into an enormous hole. The men who kept watch at the Lighthouse, heard no sounds beyond the moaning of the sea—felt no shock—looked out on the night, and saw that all was apparently still and quiet. Nature suffered her convulsion and effected her change in silence. Hundreds on hundreds of tons of soil had sunk down into depths beneath them, none knew in how long, or how short a time; but there the Lion's Den was in the morning, where the firm earth had been the evening before. The explanation of the manner in which this curious landslip occurred, is to be found by descending the face of the cliff, beyond the Lion's Den, and entering a cavern in the rocks, called "Daw's Hugo" (or Cave). The place is only accessible at low water. Passing from the beach through the opening of the cavern, you find yourself in a lofty, tortuous recess, into the farthest extremity of which, a stream of light pours down from some eighty or a hundred feet above. This light is admitted through the Lion's Den, and thus explains by itself the nature of the accident by which that chasm was formed. Here, the weight of the upper soil broke through the roof of the cave; and the earth which then fell into it, was subsequently washed away by the sea, which fills Daw's Hugo at every flow of the tide. It has lately been noticed that the loose particles of ground at the bottom of the Lion's Den, still continue to sink gradually through the narrow, slanting passage into the cave already formed; and it is expected that in no very long time the lower extremity of the chasm will widen so far, as to make the sea plainly visible through it from above. At present, the effect of the two streams of light pouring into Daw's Hugo from two opposite directions—one from the Lion's Den, the other from the seaward opening in the rocks—and falling together, in cross directions on the black rugged walls of the cave and the beautiful marine ferns growing from them, is supernaturally striking and grand. Here, Rembrandt would have loved to study; for here, even his sublime perception of the poetry of light and shade might have received a new impulse, and learned from the teaching of Nature one immortal lesson more.