Wanting to protect the pharaoh's dynasty from the admixture of foreign blood, the priests of Ancient Egypt turned to the gods Isis and Serapis for help and created a magic ring. Any woman of non-royal origin who dared to wear it died in terrible agony. For many years the ring was kept in the cache of the pharaohs until it came to the fortress of Sultan Al-Adil, to the great treasury of the East - Damietta. It became the main relic of the Sultan, for he knew the secret of the Egyptian priests. However, with the arrival of the crusaders, the ring disappeared, and Al-Adil is ready to do anything to get it back.