The Last HourA lone figure stands silhouetted atop the Mausoleum of Hadrian. Behind him, the sun is setting over the centre of the known world. Far below, the river is in full flood. The City of Rome lies spread out before him on the far bank. Footsteps pound up the stairs. He's been set up. An enemy is closing in; he is cornered. He jumps. Bruised and battered, he crawls out of the raging river. He is alone and unarmed, without money or friends, trapped in a