Fin MacCumhail, the Seven Brothers, and the King of France
When he came in front of the old hag she asked him had he the gifts. Fin said he had. She asked for the sword but she didn't get it, Fin only showed it to her. Then she asked for the head, and when she saw the head, she opened her mouth with delight at seeing the head of her brother.
While she stood there with open mouth gazing, Fin picked out the mark and struck her on the breast with the head. She fell to the ground; they left her there dead and went into the castle.