While in prison, Valentin claims to be connected to the devil and swears revenge on those who caught him. He begins a killing spree from behind bars, first murdering a court reporter and then forcing a judge to kill his own wife.

is a horror detective novel written by Jason Dark (a pseudonym for Helmut Rellergerd). It was published by Bastei Lübbe on April 12, 2022 , as part of the long-running Geisterjäger John Sinclair series. Plot Summary

Sinclair and public prosecutor Purdy Prentiss stop the crazed killer, who is subsequently taken into custody.