Deep in the Bohemian forest, of which now only a shadow remains, dwelt years ago, when it spread itself far and wide into the country, a little spiritual people, aeriel, uncorporeal, and shunning the light. They were of a finer nature than mankind, which is formed out of gross clay, and were therefore imperceptible to the coarser sense; but to the more refined they were half visible by moonlight, being well known to the poets under the name of the Dryads, and to the old bards under the name of the Elves. From time immemorial they had lived undisturbed here, until the forest suddenly resounded with the tumult of war; Duke Czech, of Hungary, crossed the mountains with his Slavonic hordes, to seek a new dwelling-place in this spot. The beautiful inhabitants of the aged oaks, of rocks, caves and grottoes, as well as those of the reeds in ponds and marshes fled from the noise of weapons, and the snorting of war-horses. Even for the mighty Erl-king the tumult was too much, and he removed his court to the more remote deserts. One elf alone could not resolve to quit her beloved oak, and when the wood was hewn down in every direction to make the land arable, she alone had the courage to defend her tree against the power of the new comers, and chose its lofty top for her abode. Among the courtiers of the duke was a young squire, named Crocus, full of courage and youthful fire, active, well made, and of noble stature. To him was entrusted the care of his master’s horses, which he sometimes drove out to feed in the forest. Often he rested under the oak which the elf inhabited; she regarded the stranger with pleasure, and when at night he slumbered by the root, she whispered pleasant dreams into his ear, predicted to him in significant images the events of the coming day; or if one of his horses had strayed in the wilderness, and the keeper had lost all traces of him, and went to sleep with heavy heart, he saw in his dream the marks of the concealed path which led to the spot where the stray horse was feeding.