But the queerest part of his vision came when Wade sent him out in a bath-chair to get fresh air. The Davidsons hired a chair, and got that deaf and obstinate dependent of theirs, Widgery, to attend to it. Widgery's ideas of healthy expeditions were peculiar. My sister, who had been to the Dogs' Home, met them in Camden Town, towards King's Cross, Widgery trotting along complacently, and Davidson evidently most distressed, trying in his feeble, blind way to attract Widgery's attention. He positively wept when my sister spoke to him. "Oh, get me out of this horrible darkness!" he said, feeling for her hand. "I must get out of it, or I shall die." He was quite incapable of explaining what was the matter, but my sister decided he must go home, and presently, as they went up hill towards Hampstead, the horror seemed to drop from him. He said it was good to see the stars again, though it was then about noon and a blazing day. "It seemed," he told me afterwards, "as if I was being carried irresistibly towards the water. I was not very much alarmed at first. Of course it was night there--a lovely night." "Of course?" I asked, for that struck me as odd. "Of course," said he. "It's always night there when it is day here.... Well, we went right into the water, which was calm and shining under the moonlight--just a broad swell that seemed to grow broader and flatter as I came down into it. The surface glistened just like a skin--it might have been empty space underneath for all I could tell to the contrary. Very slowly, for I rode slanting into it, the water crept up to my eyes. Then I went under and the skin seemed to break and heal again about my eyes. The moon gave a jump up in the sky and grew green and dim, and fish, faintly glowing, came darting round me--and things that seemed made of luminous glass, and I passed through a tangle of seaweeds that shone with an oily lustre. And so I drove down into the sea, and the stars went out one by one, and the moon grew greener and darker, and the seaweed became a luminous purple-red. It was all very faint and mysterious, and everything seemed to quiver. And all the while I could hear the wheels of the bath-chair creaking, and the footsteps of people going by, and a man in the distance selling the special _Pall Mall_.