Dr Francis Pryor has spent thirty years studying the prehistory of the Fens. He has excavated sites as diverse as Bronze Age farms, field systems and entire Iron Age villages. From 1980 he turned his attention to pre-Roman religion and has excavated barrows, ‘henges’ and a large site dating to 3800 B.C. In 1987, with his wife Maisie Taylor, he set up the Fenland Archaeological Trust. He appears frequently on TV’s ‘Time Team’ and is the author of ‘Seahenge’, ‘Britain B.C.’ and ‘Britain A.D.’