Britannia and the Rhine frontier in the aftermath of the northern war. Marcus Valerius Aquila and the Tungrians are moved away from the province that has sheltered him and into another zone where Rome depends on auxiliaries, informers and negotiated force.
The transfer promises a new start but also gives Marcus’s enemies a fresh opportunity. As tribal politics and Roman military discipline intersect, he learns that survival requires more than battlefield skill; it demands judgement about whom to trust inside the empire’s own machinery.