The Ship in the Sand — William Sullivan

Harald Bluetooth, the first king of a united Denmark, was a Viking with a conscience. When an English king slaughtered his daughter in a genocidal attack, the Danes took over the English throne. A thousand years later, the English returned the favor by freeing Denmark from the tyranny of the German Nazis.This historical novel alternates chapters between the two eras, following the Danish archeologist Mette Andersen as she struggles to help her Jewish fiance in World War II. Meanwhile in the Viking age, a sorceress spies for three kings but also serves a mysterious deeper purpose at the behest of the Norse gods.