The reader will recollect that Grindelwald was the valley on the other side of the Wengern Alp from Lauterbrunnen, and that our travellers, having come up one way, were going down the other.[11] The distance from the inn at the Wengern Alp to Grindelwald is seven or eight miles. For a time the path ascends, for the inn is not at the summit of the pass. Until it attains the summit it leads through a region of hills and ravines, with swamps, morasses, precipices of rocks, and great patches of snow scattered here and there along the way. At one place Rollo met with an adventure which for a moment put him in considerable danger. It was at a place where the path led along on the side of the mountain, with a smooth grassy slope above and a steep descent ending in another smooth grassy slope below. At a little distance forward there was a great patch of snow, the edge of which came over the path and covered it. A heavy mist had come up just before Rollo reached this place, and he had accordingly spread his umbrella over his head. He was riding along, holding the bridle in one hand and his umbrella in the other, so that both his hands were confined. Mr. George was walking at some distance before. The guide, too, was a little in advance, for the path was too narrow for him to walk by the side of the horse; and, as the way here was smooth and pretty level, he did not consider it necessary that he should be in very close attendance on Rollo. Things being in this condition, the horse--when he came in sight of the snow, which lay covering the path at a little distance before him--concluded that it would be safer both for him and for his rider that he should not attempt to go through it, having learned by experience that his feet would sink sometimes to great depths in such cases. So he determined to turn round and go back. He accordingly stopped; and turning his head towards the grassy bank above the path and his heels towards the brink on the other side, as horses always do when they undertake such a manoeuvre in a narrow path, he attempted to "go about." Rollo was of course utterly unable to do any thing to control him except to pull one of the reins to bring him back into the path, and strike his heels into the horse's side as if he were spurring him. This, however, only made the matter worse. The horse backed off the brink; and both he and Rollo, falling head over heels, rolled down the steep slope together. [Illustration: THE FALL.]