This book traces the conditions for the development of the Iron Age hillfort at Cadbury Castle, the violent suppression of its population in the first century AD and its major refortification in the post-Roman period. Using the evidence from both the famous Alcock excavations of the 1960s as well as new evidence from the extensive survey of the surrounding landscape carried out by the South Cadbury Environs Project, this is the first book to deal with a hillfort within its landscape environment. The results are startling, and include some significant departures in interpretation from earlier studies of hillforts such as Danebury and Maiden Castle. This is essential reading for anyone interested in Cadbury Castle and in hillforts generally.