Glaucus was a fisherman. One day he had drawn his nets to land, and had taken a great many fishes of various kinds. So he emptied his net, and. proceeded to sort the fishes on the grass. The place where he stood was a beautiful island in the river, a solitary spot, uninhabited, and not used for pasturage of cattle, not ever visited by any but himself. On a sudden, the fishes, which had been laid on the grass, began to revive and move their fins as if they were in the water; and while he looked on astonished, they one and all moved off to the water, plunged in, and swam away. He did not know what to make of this, whether some god had done it or some secret power in the herbage. "What herb has such a power?" he exclaimed; and gathering some of it, he tasted it. Scarce had the juices of the plant reached his palate when he found himself agitated with a longing desire for the water. He could no longer restrain himself, but bidding farewell to earth, he plunged into the stream. The gods of the water received him graciously, and admitted him to the honour of their society. They obtained the consent of Oceanus and Tethys, the sovereigns of the sea, that all that was mortal in him should be washed away. A hundred rivers poured their waters over him. Then he lost all sense of his former nature and all consciousness. When he recovered, he found himself changed in form and mind. His hair was sea-green, and trailed behind him on the water; his shoulders grew broad, and what had been thighs and legs assumed the form of a fish's tail. The sea-gods complimented him on the change of his appearance, and he fancied himself rather a good-looking personage.
One day Glaucus saw the beautiful maiden Scylla, the favourite of the water-nymphs, rambling on the shore, and when she had found a sheltered nook, laving her limbs in the clear water. He fell in love with her, and showing himself on the surface, spoke to her, saying such things as he thought most likely to win her to stay; for she turned to run immediately on the sight of him, and ran till she had gained a cliff overlooking the sea. Here she stopped and turned round to see whether it was a god or a sea animal, and observed with wonder his shape and colour. Glaucus partly emerging from the water, and supporting himself against a rock, said, "Maiden, I am no monster, nor a sea animal, but a god: and neither Proteus nor Triton ranks higher than I. Once I was a mortal, and followed the sea for a living; but now I belong wholly to it." Then he told the story of his metamorphosis, and how he had been promoted to his present dignity, and added, "But what avails all this if it fails to move your heart?" He was going on in this strain, but Scylla turned and hastened away.
Glaucus was in despair, but it occurred to him to consult the enchantress Circe. Accordingly he repaired to her island- the same where afterwards Ulysses landed, as we shall see in one of our later stories. After mutual salutations, he said, "Goddess, I entreat your pity; you alone can relieve the pain I suffer. The power of herbs I know as well as any one, for it is to them I owe my change of form. I love Scylla. I am ashamed to tell you how I have sued and promised to her, and how scornfully she has treated me. I beseech you to use your incantations, or potent herbs, if they are more prevailing, not to cure me of my love,- for that I do not wish,- but to make her share it and yield me a like return." To which Circe replied, for she was not insensible to the attractions of the sea-green deity, "You had better pursue a willing object; you are worthy to be sought, instead of having to seek in vain. Be not diffident, know your own worth. I protest to you that even I, goddess though I be, and learned in the virtues of plants and spells, should not know how to refuse you. If she scorns you scorn her; meet one who is ready to meet you half way, and thus make a due return to both at once." To these words Glaucus replied, "Sooner shall trees grow at the bottom of the ocean, and sea-weed on the top of the mountains, than I will cease to love Scylla, and her alone."
The goddess was indignant, but she could not punish him, neither did she wish to do so, for she liked him too well; so she turned all her wrath against her rival, poor Scylla. She took plants of poisonous powers and mixed them together, with incantations and charms. Then she passed through the crowd of gambolling beasts, the victims of her art, and proceeded to the coast of Sicily, where Scylla lived. There was a little bay on the shore to which Scylla used to resort, in the heat of the day, to breathe the air of the sea, and to bathe in its waters. Here the goddess poured her poisonous mixture, and muttered over it incantations of mighty power. Scylla came as usual and plunged into the water up to her waist. What was her horror to perceive a brood of serpents and barking monsters surrounding her! At first she could not imagine they were a part of herself, and tried to run from them, and to drive them away; but as she ran she carried them with her, and when she tried to touch her limbs, she found her hands touch only the yawning jaws of monsters. Scylla remained rooted to the spot. Her temper grew as ugly as her form, and she took pleasure in devouring hapless mariners who came within her grasp. Thus she destroyed six of the companions of Ulysses, and tried to wreck the ships of Aeneas, till at last she was turned into a rock, and as such still continues to be a terror to mariners.