Defeated by the Angels of London, Jassassah the Demon from the fourth circle of Hell needs a new base. Somewhere with no scrutiny, where she won't be monitored, where she can sink underground and where she has friends. Remembering Galian the old Byzantine, she rides the Orient Express train to Istanbul. Jassassah has a secret plan which Galian will learn and it involves releasing some dark demons held captive beneath the historic city of Istanbul. Jassassah the Demon needs an army to exact her revenge, not on the Angels directly but on the beings they protect...us the human race.