"The Cross and the Hammer: A Tale of the Days of the Vikings" by H. Bedford-Jones is a historical novel written in the early 20th century. The narrative unfolds during the Viking Age, chronicling the tumultuous and dramatic events surrounding Norway's conversion to Christianity and the struggles of its kings. The story introduces primary characters such as the young warriors Sigurd Fairhair and Vagn Akison, who find themselves embroiled in the promises of valor and vengeance amidst the fiery conflicts of their time. The opening of the novel sets the stage at the celebrations of King Svein of Denmark's accession, filled with joy and revelry but soon overshadowed by the making of ambitious vows that initiate a series of challenges. Inside the great hall, as the young boys Sigurd and Vagn witness their elders pledge mighty deeds against enemies like Jarl Hakon of Norway, they too are swept up in the fervor and make rash declarations of their own. However, the light-hearted atmosphere quickly shifts when they find themselves in a dire predicament; the boys are kidnapped by Norsemen, setting the stage for further adventures that test their valor, cunning, and resilience in an era marked by chaos and courage. (This is an automatically generated summary.)