"The Merchant of Berlin: An Historical Novel" by L. Mühlbach Luise Mühlbach was the pen name of Clara Mundt, a German writer best known for her works of historical fiction, which enjoyed wide popularity in Germany and abroad. Taking place during the Seven Years' War, this book looks at how the conflict managed to affect people around the country. Focusing on Berlin, the country's economic center, this book explores society and the financial impacts of a changing nation.