The prison of false lovers in Arthurian legend

The Val sans retour is a legendary site of the Arthurian cycle located in the forest of Paimpont, in Brittany. Its creation dates back to the fairy Morgan le Fay, who wanted to take revenge for a romantic disappointment by sequestering knights unfaithful in love there. The imprisonment lasted seventeen years before Lancelot du Lac overcame the spell and freed 253 men.