For as he went along Orpheus played upon his lyre and sang, and the trees heard his song and they were moved by his grief, and with their arms and their heads they showed him the way to the deep, deep valley of Acherusia.
It would be granted themno mortal ever gained such privilege beforeto leave, both together, the world of the dead, and to abide for another space in the world of the living.
And all he heard spoken was a single word, Farewell! Long, long had it taken Eurydice to climb so far, but in the moment of his turning around she had fallen back to her place amongst the dead.
In some versions, Heracles merely asks Hades for permission to take Cerberus, to which Hades agrees as long as Heracles does not harm the hound, though in other versions Heracles shot Hades with an arrow.
In some versions, Heracles drags the dog out of Hades, passing through the cavern Acherusia, but in other versions, Heracles treats the vicious dog with the first kindness it has seen, and easily walks out with it.
The constellation of Pisces was not always associated with two fish, the original sky fish was Piscis Austrinus.