In A.D. 262, imperial secret agent Aulus Perennius stands alone against the imminent collapse of Rome's empire, until a visitor from the distant future engages him in a mission of utmost secrecy and significance
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: Rome, 262 AD. It had been the capital of the civilization on Earth. Now both city and civilization are dying. Imperial unity has shattered as separatists and usurpers squabble among themselves as greater enemies gather to swallow them all. One man stands between humanity and the Long Night, matching his savage determination against a hopeless future. He is Aulus Perennius, an Imperial secret agent as tough and ruthless as the age in which he lives. Until now, though, his enemies have all been human.