"Cosmic Tragedy" by Thomas S. Gardiner is a science fiction novel written in the early to mid-20th century. The story revolves around the catastrophic effects of a mysterious plague known as the “Whispering Death” that drives humanity into chaos, while simultaneously exploring an extraterrestrial civilization's desperate attempts to communicate with Earth. The book delves into themes of survival, the fragility of civilization, and the consequences of unchecked energy manipulation. The narrative follows John Cortland, a power magnate, as he grapples with the global panic and societal collapse caused by the unsettling whispers that drive people to madness. As the situation escalates and order disintegrates, Cortland discovers that iron can shield individuals from the devastating effects of the energy emissions causing the chaos. With a flicker of hope, he coordinates an unprecedented release of energy to counteract the vibrations plaguing Earth. Simultaneously, the Murians, an alien species seeking refuge on Earth, attempt to establish communication but unwittingly become victims of humanity's desperate response. The climax unfolds with catastrophic consequences, ultimately showcasing the fragility of both human civilization and the unforeseen repercussions of technological power. (This is an automatically generated summary.)