"The Beast-Jewel of Mars" by V. E. Thiessen is a science fiction novel written during the mid-20th century. The story is set on Mars and explores themes of illusion, identity, and destiny. It follows a man named Eric North who finds himself entrapped by a magnificent city that evokes both desire and fear, confronting his inner struggles amidst its fantastical allure. In the narrative, Eric North arrives on Mars with the intention of exploring an alluring city that soon reveals itself to be a source of danger and manipulation. Captivated by its beauty and the music that calls him, he soon realizes that the city possesses a sinister power over minds, including that of his brother, Garve, who has also fallen under its spell. As Eric grapples with the legend surrounding him—prophesying that he will destroy the city—he is drawn into a series of conflicts involving the Elders of the city, who fear his potential. Through various challenges, including a confrontation with his own brother, Eric discovers the city's true nature as a machine fueled by the will of its inhabitants, ultimately leading him to make a harrowing decision to break free from its hold and reclaim his autonomy, even as he navigates complex emotional ties and prophecy. (This is an automatically generated summary.)