Reivers wasn’t a word I was familiar with, unless you count the Reavers in the science-fiction series Firefly. And indeed, they are not dissimilar, both describing a frontier people that often live outside the laws governing ordinary men. I’ve read in the past about the Welsh Marches, meaning the border between England and Wales, but the Border Reivers in this book are the groups of raiders who lived on the Anglo-Scottish border that roughly follows the Cheviot Hills.
The book begins with a description of the border lands, and the first thing that surprised me—even though I’m originally from the UK—is that although Hadrian’s Wall runs horizontally from west to east coast, the border between Scotland and England runs north-east to south-west, not far off vertical. How did I not know that?! (Please note that the photos that follow are not from the book.)