Aude grew pale and waxen with grief, and her step-mother asked her the cause. She replied that she was suffering from pains in her chest. The stepmother advised the application of soft cheese and then told the newly-returned brother that Juthwara was a wanton women who had brought shame on the family by getting herself pregnant. At first, Bana was incredulous, so the stepmother told him to examine Aude's underclothes, for he would find them covered in milk.

The young man rushed to find his sister and, finding her washing clothes after having returned from church, he openly accused her of sleeping around. Aude was, naturally, shocked by this wild and inexplicable allegation and even more so when her brother physically attacked her in order to drag out her underclothes. Of course, Bana immediately felt the moisture of the healing cheese and, in a blind fury, drew his sword and cut off poor Aude's head. A fountain of water immediately sprung up on the spot, as well as a great oak beginning to grow. The girl, meantime, took up her head, walked to their house, put on her head again, reproached her brother and subsequently dropped down dead. Aude was buried in the church in Halstock until translated to Sherborne Abbey on 13th July sometime in the 1040s or 50s. She died on 6th January, although her most popular feast day is that of her translation.

Bana is said to have repented of his crime and went off to Brittany to consult with his brother, St. Paul at Léon. St. Paul advised him to retire into a forest near Landerneau as a penance, and there fast and pray for forty days. The penance accomplished, Bana returned to his brother, who admitted him as a monk in his monastery, eventually sending him to be superior of a cell he had established at Gerber, afterwards called Le Relecq, where he changed his name to Tangwy.

Records of St. Juthwara date back to the 14th century. She is generally considered legendary.