"How little we really know, my friends; how little we really know."
 
The speaker was Gabriel, a distinguished civil engineer of the mountain corps. He was seated under a pine tree, near a spring, on the crest of the Guadarrama. It was only about a league and a half distant from the palace of the Escurial, on the boundary line of the provinces of Madrid and Segovia. I know the place, spring, pine tree and all, but I have forgotten its name.
 
"Let us sit down," went on Gabriel, "as that is the correct thing to do, and as our programme calls for a rest here—here in this pleasant and classic spot, famous for the digestive properties of that spring, and for the many lambs here devoured by our noted teachers, Don Miguel Bosch, Don Maximo Laguna, Don Augustin Pascual, and other illustrious naturalists. Sit down, and I will tell you a strange and wonderful story in proof of my thesis, which is, though you call me an obscurantist for it, that supernatural events still occur on this terraqueous globe. I mean events which you cannot get into terms of reason, or science, or philosophy—as those 'words, words, words,' in Hamlet's phrase, are understood (or are not understood) to-day."
 
Gabriel was addressing his animated remarks to five persons of different ages. None of them was young, though only one was well along in years. Three of them were, like Gabriel, engineers, the fourth was a painter, and the fifth was a litterateur in a small way. In company with the speaker, who was the youngest, we had all ridden up on hired mules from the Real Sitio de San Lorenzo to spend the day botanizing among the beautiful pine groves of Pequerinos, chasing butterflies with gauze nets, catching rare beetles under the bark of the decayed pines, and eating a cold lunch out of a hamper which we had paid for on shares.
 
This took place in 1875. It was the height of the summer. I do not remember whether it was Saint James's day or Saint Louis's; I am inclined to think it was Saint Louis's. Whichever it was, we enjoyed a delicious coolness at that height, and the heart and brain, as well as the stomach, were there in much better working order than usual.
 
When the six friends were seated, Gabriel continued as follows:
 
"I do not think you will accuse me of being a visionary. Luckily or unluckily, I am, if you will allow me to say so, a man of the modern world. I have no superstition about me, and am as much of a Positivist as the best of them, although I include among the positive data of nature all the mysterious faculties and feelings of the soul. Well, then, apropos of supernatural, or extra-natural, phenomena, listen to what I have seen and heard, although I was not the real hero of the very strange story I am going to relate, and then tell me what explanation of an earthly, physical, or natural sort, however you may name it, can be given of so wonderful an occurrence.
 
"The case was as follows. But wait! Pour me out a drop, for the skin-bottle must have got cooled off by this time in that bubbling, crystalline spring, located by Providence on this piny crest for the express purpose of cooling a botanist's wine."