The Disciples of Marduk were a group of four Babylonian high priests and skilled magicians, living during the reign of King Nebuchadnezzar, entrusted with each taking one of the four removable but essential pieces of the Infernal Machine and scattering them all across the world. The mission of the Disciples was to conceal and guard these four parts of the Machine, which each possessed awesome but devastating powers all on their own, but without which the Infernal Machine as a whole could not operate.