Bk I:568-587 Inachus mourns for Io.
There is a grove in Haemonia, closed in on every side by wooded cliffs. They call it Tempe. Through it the river Peneus rolls, with foaming waters, out of the roots of Pindus, and in its violent fall gathers clouds, driving the smoking mists along, raining down spray onto the tree tops, and deafening remoter places with its roar. Here is the house, the home, the innermost sanctuary of the great river. Seated here, in a rocky cavern, he laid down the law to the waters and the nymphs who lived in his streams. Here the rivers of his own country first met, unsure whether to console with or celebrate Daphne's father: Spercheus among poplars, restless Enipeus, gentle Amphrysus, Aeasand ancient Apidanus; and then later all the others that, whichever way their force carries them, bring down their weary wandering waters to the sea. Only Inachus is missing, but hidden in the deepest cave he swells his stream with tears, and in utter misery laments his lost daughter, Io, not knowing if she is alive or among the shades. Since he cannot find her anywhere, he imagines her nowhere, and his heart fears worse than death.