He remembered an old tale which his father was fond of telling him—the story of Eos Amherawdur (the Emperor Nightingale). Very long ago, the story began, the greatest and the finest court in all the realms of faery was the court of the Emperor Eos, who was above all the kings of the Tylwydd Têg, as the Emperor of Rome is head over all the kings of the earth. So that even Gwyn ap Nudd, whom they now call lord over all the fair folk of the Isle of Britain, was but the man of Eos, and no splendour such as his was ever seen in all the regions of enchantment and faery. Eos had his court in a vast forest, called Wentwood, in the deepest depths of the green-wood between Caerwent and Caermaen, which is also called the City of the Legions; though some men say that we should rather name it the city of the Waterfloods. Here, then, was the Palace of Eos, built of the finest stones after the Roman manner, and within it were the most glorious chambers that eye has ever seen, and there was no end to the number of them, for they could not be counted. For the stones of the palace being immortal, they were at the pleasure of the Emperor. If he had willed, all the hosts of the world could stand in his greatest hall, and, if he had willed, not so much as an ant could enter into it, since it could not be discerned. But on common days they spread the Emperor's banquet in nine great halls, each nine times larger than any that are in the lands of the men of Normandi. And Sir Caw was the seneschal who marshalled the feast; and if you would count those under his command—go, count the drops of water that are in the Uske River. But if you would learn the splendour of this castle it is an easy matter, for Eos hung the walls of it with Dawn and Sunset. He lit it with the sun and moon. There was a well in it called Ocean. And nine churches of twisted boughs were set apart in which Eos might hear Mass; and when his clerks sang before him all the jewels rose shining out of the earth, and all the stars bent shining down from heaven, so enchanting was the melody. Then was great bliss in all the regions of the fair folk. But Eos was grieved because mortal ears could not hear nor comprehend the enchantment of their song. What, then, did he do? Nothing less than this. He divested himself of all his glories and of his kingdom, and transformed himself into the shape of a little brown bird, and went flying about the woods, desirous of teaching men the sweetness of the faery melody. And all the other birds said: "This is a contemptible stranger." The eagle found him not even worthy to be a prey; the raven and the magpie called him simpleton; the pheasant asked where he had got that ugly livery; the lark wondered why he hid himself in the darkness of the wood; the peacock would not suffer his name to be uttered. In short never was anyone so despised as was Eos by all the chorus of the birds. But wise men heard that song from the faery regions and listened all night beneath the bough, and these were the first who were bards in the Isle of Britain.
So at last Ilar Sant came to this wood, which people now call St. Hilary's wood because they have forgotten all about Ilar. And he was weary with his wandering, and the day was very hot; so he stayed by this well and began to drink. And there on that great stone he saw the shining fish, and so he rested, and built an altar and a church of willow boughs, and offered the sacrifice not only for the quick and the dead, but for all the wild beasts of the woods and the streams."And when this blessed Ilar rang his holy bell and began to offer, there came not only the Prince and his servants, but all the creatures of the wood. There, under the hazel boughs, you might see the hare, which flies so swiftly from men, come gently and fall down, weeping greatly on account of the Passion of the Son of Mary. And, beside the hare, the weasel and the pole-cat would lament grievously in the manner of penitent sinners; and wolves and lambs together adored the saint's hierurgy; and men have beheld tears streaming from the eyes of venomous serpents when Ilar Agios uttered 'Curiluson' with a loud voice—since the serpent is not ignorant that by its wickedness sorrow came to the whole world. And when, in the time of the holy ministry, it is necessary that frequent Alleluyas should be chanted and vociferated, the saint wondered what should be done, for as yet none in that place was skilled in the art of song. Then was a great miracle, since from all the boughs of the wood, from every bush and from every green tree, there resounded Alleluyas in enchanting and prolonged harmony; never did the Bishop of Rome listen to so sweet a singing in his church as was heard in this wood. For the nightingale and thrush and blackbird and blackcap, and all their companions, are gathered together and sing praises to the Lord, chanting distinct notes and yet concluding in a melody of most ravishing sweetness; such was the mass of the Fisherman. Nor was this all, for one day as the saint prayed beside the well he became aware that a bee circled round and round his head, uttering loud buzzing sounds, but not endeavouring to sting him. To be short; the bee went before Ilar, and led him to a hollow tree not far off, and straightway a swarm of bees issued forth, leaving a vast store of wax behind them. This was their oblation to the Most High, for from their wax Ilar Sant made goodly candles to burn at the Offering; and from that time the bee is holy, because his wax makes light to shine upon the Gifts.