The 7th century ship burial at Sutton Hoo contains many enigmatic objects, none more so than a beautifully-worked stone with metal fittings which includes a cast bronze model stag. It is often referred to as a 'sceptre' or 'whetstone' but it may be neither. The techniques used in making the stone and fitments display exceptional craftsmanship. So why were considerable resources devoted to creating it? The making of a museum quality replica stone has provided new information and fresh insights which may help us answer many of the questions that have been asked about this beautiful and puzzling object. The techniques used in making the stone are explained as is the geometry embedded within the overall design. There is also a critical review of the existing literature on the subject and a series of essays on aspects of Anglo-Saxon society that may be related to the making of the original stone. In addition to the dictionary there are lists of source texts, a nautical glossary and a catalogue of images and finds.