Kaltes Blut (Cold Glood): Julia Durant's main commissioner, who is known for her unconventional methods of investigation. She works as a senior investigator in the homicide unit in Frankfurt, is in excellent career, her personal life but she does not get a grip. She is divorced, and all subsequent relationships have failed so far. It has identified in 11 novels, she also has a cameo appearance in the novel Kiel Icy nearby .