Killmaster's most terrifying case! At the invitation of the Swedish intelligence service, Carter attempts to break into the high security underground military base in Musko. Deep in an abandoned section of the underground base he discovers a group of German technicians working on a secret project. Carter learns that the project is run by neo-Nazi Count Ulrich von Stadee before the entire group commits suicide by poison rather than be captured.
This book is part of the Nick Carter: Killmaster Books series and is book #30 in the series.