FASCINATING TOPIC - - and loved the relevant link to North America and Minnesota. The information presented was very interesting. And the implications were crazy! The topic was well-researched and supported by maps/drawings/photos.
I found myself 'googling' the people/events/artifacts in this book to get a further understanding of their places in history.

Interesting facts, supported by photos, somewhat corny story line, but it was a quick read and certainly something to think about as far as the evidence provided in the story.