Swapping the nine-to-five grind for the freedom of our great indoors, Jonny Muir set off on a 5,000-mile cycling and walking odyssey. His mission? To visit the highest point of every summit in the United Kingdom... in just three months. Heights of Madness is at its heart, a celebration of the diverse British countryside. This charming, quirky and very personal view of an extraordinary journey takes the reader through villages and towns, fen and moor, sunshine and rain. So pack your racksack, dust off your walking boots and get ready for the trip of a lifetime.