Well, it's all about Gregor and his general. Gregor was Field-Marshall von Kluge's driver apparently (SS General Chapter 8). He was a furniture removal man before the war. We do hear (in Reign Of Hell) that Gregor's mother looked after him very well as a child!|
Apart from his stories about his general, Gregor's main appearance in the books comes in O.G.P.U. Prison when he is guard commander at the beginning of the book, and slowly goes to pieces as the attempt to get his prisoners across Berlin to jail becomes more and more confusing!