Witch of Mammon — David Martin

Dark forces are at work in the proud, ancient city of Constantinople. After a man makes a pact with demons to amass great wealth, his son Raffi is faced with an impossible decision: join an assassination plot or forfeit his vast inheritance. Soon, Raffi finds himself a pawn in a deadly contest between sorcerers. Will he survive, and can he unravel the secret that destroyed his family? Though set long ago, this tale of sword and dagger, magic and demons, asks a timeless question: How far would you go to be rich?