[Source] George of Kagen, also known as the Dragonslayer was a legendary witcher from the Griffin School. George investigated the mystery of lighthouse in Velen. He was hired by prefects of Gors Velen who were concerned about latest ship casualties in the region. The witcher learned that the accidents were caused by local villagers who made fires on cliffs in order to crash and then loot all the arriving ships. After he explained the situation to the prefects he accepted a contract on a Green Dragon that was scorching nearby villages. George left in hurry and forgot a diagram for his new silver sword that he had to order since his old sword was destroyed.