The bishop twice disregarded the request made in the apparition, until finally St. Michael touched the bishop's head with his finger and burned a hole in it, but without killing him - a skull with a hole belonging to St. Aubert is still kept in Avranches Cathedral.
Soon after, a chapel was built in the grotto, which was named Mont Saint-Michel-au-péril-de-la-Mer (Saint Michael's Hill in the Dangerous Sea).
