Giles Milton's first book, The Riddle and the Knight, is a fascinating account of the legend of Sir John Mandeville, a long-forgotten knight who was once the most famous writer in medieval Europe. Mandeville wrote a book about his voyage around the world that became a beacon that lit the way for the great expeditions of the Renaissance, and his exploits and adventures provided inspiration for writers such as Shakespeare, Milton, and Keats. By the nineteenth century however, his claims were largely discredited by academics. Giles Milton set off in the footsteps of Mandeville, in...