The beautiful and lascivious daughter of Gralon, King of Ker-Ys. She stole the
keys of the sluice gates from her father and presented them to her lover, who let in
the waters of the sea. Her father fled the flood on horseback with Ahes on the
crupper behind him, accompanied by St. Guénolé, the king's confessor.
When the water tried to engulf them, the confessor bade the king to cast off the she
devil who had caused the mischief. At these words, Ahes fell with a shriek into the
waves and disappeared. Her father reached dry land, but Ahes still haunts the seas in
the form of a lovely maiden, luring sailors to their doom.