& Co, Snorre Sturlason – Heimskringla, 1899. From Wilhelm Wägner, Nordisch-germanische Götter und Helden, 1882 (Leipzig). From Vilhelm Grønbech, Nordiske Myter og Sagn, 1941 (Copenhagen). From Olive Bray, Sæmund’s Edda, 1908 (The Viking Club). From Karl Gjellerup, Den ældre Eddas Gudesange, 1895 (Copenhagen). From Richard Wagner, The Rhinegold and the Valkyrie, 1910 (Quarto). From Rudolf Herzog, Germaniens Götter, 1919 (Leipzig). Statens Historiska Museet, Stockholm. Árni Magnússon Institute for Icelandic Studies, Reykjavík. From Karl Gjellerup, Den ældre Eddas Gudesange, 1895 (Copenhagen). Árni Magnússon Institute for Icelandic Studies, Reykjavík. Photo Researchers/Alamy. DeAgostini/SuperStock. Árni Magnússon Institute for Icelandic Studies, Reykjavík. From Viktor Rydberg, Our Fathers’ Godsaga, 1911 (Berlin). British Museum, London. From Abbie Farwell Brown, In the Days of the Giants: A Book of Norse Tales, 1902 (Houghton, Mifflin and Co.). From Wilhelm Wägner, Nordisch-germanische Götter und Helden, 1882 (Leipzig). From Harriet Taylor Treadwell and Margaret Free, Reading-Literature Fourth Reader, 1913 (Chicago). From Padraic Colum, The Children of Odin, 1920 (Macmillan). Árni Magnússon Institute for Icelandic Studies, Reykjavík. From Karl Gjellerup, Den ældre Eddas Gudesange, 1895 (Copenhagen). From Martin Oldenbourg, Walhall, die Götterwelt der Germanen, 1905 (Berlin). From Padraic Colum, The Children of Odin, 1920 (Macmillan). From Felix Dahn, Walhall: Germanische Götter- und Heldensagen, 1901 (Breitkopf und Härtel). Richard Wagner Museum, Bayreuth/Dagli Orti/The Art Archive. Statens Historiska Museet, Stockholm. Granger, NYC/Alamy. Universitetets Oldsaksamling, Oslo/Werner Forman Archive. Illustration by Dr Dayanna Knight. Photo Carolyne Larrington. From Richard Wagner, Siegfried & the Twilight of the Gods, 1911 (London). Universitetets Oldsaksamling, Oslo/Werner Forman Archive. From Olaus Magnus, A Description of the Northern Peoples, 1555 (Hakluyt Society). From Fredrik Sander, Poetic Edda, 1893 (Stockholm). Yolanda Perera Sanchez/Alamy. Photo Gilwellian. Árni Magnússon Institute for Icelandic Studies, Reykjavík. British Museum, London. Photo Berig. From Olive Bray, Sæmund’s Edda, 1908 (The Viking Club). Det Kongelige Danske Kunstakademi, Copenhagen. Manchester Art Gallery/Bridgeman Images. Photo Gerry Millar. Nationalmuseum, Stockholm. From Olive Bray, Sæmund’s Edda, 1908 (The Viking Club). From H. A. Guerber, Myths of the Norsemen from the Eddas and Sagas, 1909 (London). From Finnur Jоnsson, Goðafræði Norðmanna og Íslendinga eftir heimildum, 1913 (Reykjavík). From Martin Oldenbourg, Walhall, die Götterwelt der Germanen, 1905 (Berlin). Photo Sven Nilsson