Gísla saga Súrssonar (Icelandic pronunciation: [ˈcistla ˈsaːɣa ˈsur̥sɔnar̥], The saga of Gísli the Outlaw) is one of the sagas of Icelanders. It tells the story of Gísli, a tragic hero who must kill one of his brothers-in-law to avenge another brother-in-law. Gisli is forced to stay on the run for thirteen years before he is finally hunted down and killed. The events depicted in the saga take place between 860 and 980. The saga existed in oral tradition until it was recorded, most likely in the 13th century.