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. Who is right, and who will win? Only the gods and the archeologists seem to know.

The author of 3 novels and nearly a dozen nonfiction books, Sullivan earned an English degree at Cornell University, studied linguistics in Heidelberg,Germany, and completed a master's degree in German literature at the University of Oregon. His adventure memoir of a 1000-mile walk through Oregon's wilderness, "Listening for Coyote" was hailed as "an American classic" by Alison Lurie and chosen one of Oregon's 100 books. He lives in Eugene, Oregon.