When Centurion Macro arrives on British soil as one of Emperor Claudius's invasion force in 43 AD, he is facing one of the toughest campaigns of his battle-scarred career. In a series of bloody skirmishes, Macro and his young subordinate, Optio Cato, and the desperately outnumbered Roman army must find and defeat the enemy before he grows strong enough to overwhelm the legions. But the Britons are not the only foe facing Macro and Cato. A sinister...