 Other sources acting as examples of Gunnhild's sorcery include the story of King Hákon's death in Snorri's Heimskringla, as well as instances concerning Egil in Egil's Saga, and suspicion surrounding the death of Halfdan Haraldsson .Heimskringla describes Hákon's ascent to the Norwegian throne after hearing of the cruelties caused by Eirík's rule.Hákon found great support among the Norwegian people, and therefore forced Eirík and Gunnhild to flee to England.