premise: The Return of the Condor Heroes, also called The Giant Eagle and Its Companion, is a wuxia novel by Jin Yong (Louis Cha). It is the second part of the "Condor Trilogy" and was preceded by "The Legend of the Condor Heroes" and followed by "The Heaven Sword and Dragon Saber". It was first serialised between 20 May 1959 and 5 July 1961 in the Hong Kong newspaper "Ming Pao".
hypothesis: The Return of the Condor Heroes was not the only novel that Louis Cha ever wrote
reason: The Return of the Condor Heroes is part of a trilogy, so my statement that it is not the only novel written by the author must be correct