Legend of the castle of La Yedra in Cazorla (Jaén) of a Moorish princess hidden in the dungeons by her father in the face of the attack of the Christians who ended up eliminating their enemies. Alone, terrified of cold and forgotten, she ended up becoming a snake. On the night of St. John you can hear her singing in sweet voice : "I am the swallowing/ , daughter of the Moorish king. / Whoever hears me sing/ will not see the light of day."