The 3rd in a series about Harald Sigurdharsson (Harald Hardrada) the Lightning of the North. I enjoy Poul Anderson for his style of writing which is unusual but his descriptions are evocative and this series should be read by all fans of North legend. The fact that these are presented in a quick read paperback series should not put you off as this book should more properly be published in hardback and deserves to be. The tale is fairly true to historical sources. If you like the style of writing here he raises it to a higher art form in Mother of Kings a novel about Erik Bloodaxe.