Used. Hardcover. If you think every square inch of this planet has been thoroughly mapped and strip-mined of mystery, Kate Harris is here to politely steer your handlebars into the unknown. Trading a childhood dream of Mars for the dusty desolation of the Silk Road, Harris and a lifelong friend cycle thousands of miles across Central Asia to see if the earth can still swallow you whole. This isn't your average travelogue of touring triumphs, but a sharp, philosophical pedal-push into what it actually means to wander without a compass in a modern age. It is a wildly cerebral ride that proves the best borders left to cross are the ones inside your own head.