[Attrecomet]

Except it very obviously IS a medieval world. Not our Middle Ages, but a world that works very closely like how we understand Middle Ages to work. It's feudal, he understands Anglo-Saxon warfare to an amount surprising in an author of trivial literature, and he very obviously DID make a huge effort to make many details correct either in the "how we understand the past" way or to frame them in a way that is understandable for the people who read Beowulf and similar myths.