Frank Heller was the pen name of a Swedish writer. His real name was Gunnar Serner. He lived from July 20, 1886 - October 14, 1947. He wrote a series of light novels. His books were about suspicious international business. Heller created the character Philip Collin in most popular books. Collin who was a detective and a thief. Collin also used the name Professor Pelotard.
Bibliography
The Emperor's Old Clothes, 1923 New York
The Marriage of Yussuf Khan, Crowell New York 1923, Hutchinson & Co London 1924
The Chinese Coats, London 1924
The Grand Duke's Finances
The Perilous Transactions of Mr. Collin, 1924
The London Adventures of Mr. Collin, 1923
Mr. Collin is Ruined, 1925
The Strange Adventures of Mr. Collin, Crowell New York 1926
The Thousand and Second Night, An Arabesque. Williams & Norgate, London, 1926
Lead Me into Temptation, Crowell New York 1927
Twilight of the Gladiators, 1944
F. W. Murnau made a film called The Grand Duke's Finances (German: Die Finanzen des Großherzogs) that was based on of Heller's novel with the same name.