The Burton system was once prosperous by the standards of the Imperium, but accumulated injustice led to a people's uprising. One of its architects was Samuel Krüger, a renegade Inquisitor. Hailing from Krieg, he understood well how high the price to pay for independence from the Imperium could be, and made a hard and controversial decision to form an alliance with the forces of Chaos.
Krüger was killed, and in the Burton system there has been a war between the Imperials and the Chaos for almost two hundred years, a senseless slaughter for patches of already uninhabitable land, where no one wants to retreat. But the memory of the ex-Inquisitor, as well as unfulfilled hopes of ordinary people for a better life, were not gone. The terrible Knight has been spotted in many places across the Imperium, either alone or as part of the Chaos or renegade warbands. It struck fear into planetary defenders with its mere appearance, and burned the brave ones with a volkite combustor and crushed them with an electroscourge. There are rumors that it has no pilot inside for a long time, only a spirit filled with blind rage and thirst for vengeance.