Beacon on the Fens - Chapel Head, Warboys, The Fens, Cambridgeshire

A little mound of earth known as Chapel Head has intrigued archaeologists for years. There are ornately carved stone blocks around the hill, and beautiful flint axes that are at least 4000 years old have also been found. Early signs are of a medieval chapel, and very soon a cobbled surface shows building of that period. But Francis is having trouble locating a bronze age ring ditch. The team are joined by Ben Robinson from Peterborough Museum, and medieval pottery expert Paul Spoerry.