Having taken part in the invasion of England, and later suffering serious injury in battle, Sir Alan of Thorrington is asked to use his wits to assist King William in the political and judicial arenas, and to use his specialist knowledge as a siege engineer. Dispatched to the Welsh Marches, Alan negotiates the surrender of Eadric 'The Wild', before again acting as a spy in the North of England. Journeying with the embassage to the king of Scotland, when one of the embassage is foully murdered Alan takes the leading hand in the investigation. Shipwreck, murder, intrigue and bloody battles, culminating in the Revolt of the Earls, form part of this spellbinding story, set in the turbulent years following the Norman invasion and the subsequent subjugation of the English. Historical detail and facts are woven into each story in the series, enriching the reading experience for the history aficionado. History comes alive on every page. Medieval England can be felt, heard, touched and smelt.