During a sea-voyage he is dragged off course by the witchcraft of a troll named Jarnnef (Iron-Nose) and shipwrecked on the shore of Helluland.
After some adventures in Africa, which greatly resemble Halfdan's exploits in Helluland, Sörli encounters Halfdan, kills him, and takes his ship.
According to Sephton's 1880 translation of the saga, the Wonderstrands was beyond Helluland, Markland and Kjalarnes, but north of Straumfjörð and Hóp.