Margit Sandemo (née Underdal, born 23 April 1924) is a Norwegian-Swedish historical fantasy author. She has been the best-selling author in the Nordic Countries since the 1980s, when her novel series of 47 books, The Legend of the Ice People, was published. She has also written many other book series such as Häxmästaren and Legenden om Ljusets rike.Typical features for works of Margit Sandemo are among other things history, fantasy, romance, suspense and supernatural phenomena.