And the heroes prayed, but in vain, and cried, “Cleanse us from our guilt!” but she sent them away and said, “Go eastward, that you may be cleansed, and after that you may go home.”

Slowly and wearily they sailed on, till one summer’s eve they came to a flowery island, and as they neared it they heard sweet songs.

[Illustration:  ORPHEUS SANG TILL HIS VOICE DROWNED THE SONG OF THE SIRENS.]

Medeia started when she heard, and cried, “Beware, O heroes, for here are the rocks of the Sirens.  You must pass close by them, but those who listen to that song are lost.”

Then Orpheus spoke, he, the king of all minstrels, “Let them match their song against mine;” so he caught up his lyre and began his magic song.

Now they could see the Sirens.  Three fair maidens, sitting on the beach, beneath a rock red in the setting sun.

Slowly they sung and sleepily, and as the heroes listened the oars fell from their hands, and their heads dropped, and they closed their heavy eyes, and all their toil seemed foolishness, and they thought of their renown no more.

Then Medeia clapped her hands together and cried, “Sing louder, Orpheus, sing louder.”

And Orpheus sang till his voice drowned the song of the Sirens, and the heroes caught their oars again and cried, “We will be men, and we will dare and suffer to the last.”

And as Orpheus sang, they dashed their oars into the sea and kept time to his music as they fled fast away, and the Sirens’ voices died behind them, in the hissing of the foam.

But when the Sirens saw that they were conquered, they shrieked for envy and rage and leapt into the sea, and were changed into rocks.

Then, as the Argonauts rowed on, they came to a fearful whirlpool, and they could neither go back nor forward, for the waves caught them and spun them round and round.  While they struggled in the whirlpool, they saw near them on the other side of the strait a rock stand in the water—­a rock smooth and slippery, and half way up a misty cave.

When Orpheus saw the rock he groaned.  “Little will it help us,” he cried, “to escape the jaws of the whirlpool.  For in that cave lives a sea-hag, and from her cave she fishes for all things that pass by, and never ship’s crew boasted that they came safe past her rock.”

Then out of the depths came Thetis, the silver-footed bride of one of the heroes.  She came with all her nymphs around her, and they played like snow-white dolphins, diving in from wave to wave before the ship, and in her wake and beside her, as dolphins play.  And they caught the ship and guided her, and passed her on from hand to hand, and tossed her through the billows, as maidens do the ball.

And when the sea-hag stooped to seize the ship, they struck her, and she shrank back into her cave affrighted, and the Argo leapt safe past her, while a fair breeze rose behind.

Then Thetis and her nymphs sank down to their coral caves beneath the sea, and their gardens of green and purple, where flowers bloom all the year round, while the heroes went on rejoicing, yet dreading what might come next.