Koestler: The Literary and Political Odyssey of a Twentieth-Century Skeptic - Michael Scammell - Google Books

https://books.google.de/books?id=bO7ANkFkH0UC&pg=PA240&dq=%22Karl+Theodore+Bluth%22#v=onepage

From award-winning author Michael Scammell comes a monumental achievement: the first authorized biography of Arthur Koestler, one of the most influential and controversial intellectuals of the twentieth century. Over a decade in the making, and based on…