(from the back of the book) Rostock - the spiritually and economically leading metropolis on the Baltic Sea, which looks back on more than 800 years of history. A Hanseatic city that was occupied by the Swedes during the Thirty Years' War and suffered terrible destruction in a devastating city fire in the 17th century. Rostock in August 1927: The Seven are back and a madman plunges the city into chaos and ruin. The pyre and the gallows line the streets. Ideally four investigators must stop him in this adventure and save Rostock before the city suffers a fate that no history book tells us!