In the late 1700s, Ensign Francis Allingham, of the Wessex Dragoons, and his friend, junior naval Lieutenant John Harker, joined forces to help rescue French aristocrats from the “Reign of Terror” – a dark period in history when the rulers of the new republic executed any who stood against them.

Despite the risks, Francis’ special cavalry unit undertook many rescue missions across the Channel. While dodging the French, though, he was unaware that danger lurked closer to home. His senior Sergeant, Silas Carrick, was not to be trusted…