Audiobook The Wall at the Edge of the World, written by Damion Hunter. Save lives. Or take them? A gripping novel of the Roman frontier. Army Medic Postumus Justinius Corvus is a long way from his native Britannia, in the Syrian provinces at the far corner of Empire. But now he is going home, unexpectedly promoted to Senior Surgeon in the Sixth. The new Emperor faces problems in the far-flung island at the edge of Empire.