Tim Wonnacott and his silver rig visit the Hay-on-Wye literary festival, where he finds a striking traditional Welsh costume and a curious object relating to pit ponies among many others. Putting Hay on the Great Antiques Map of Britain, he also sees furniture made in Hay itself over a hundred years ago. He also meets the owner of a private toll bridge which helps to connect Hay to the outside world, and he investigates the story of bibliophile and 'King of Hay' Richard Booth.
