The story, divided into short, numbered "episodes" rather than chapters, is presented as a "story about Nikola Tesla" recounted by Richard Feynman to a group of other Manhattan Project scientists in the wake of World War II. It involves the efforts of a similar think-tank, the Kamikaze Group, to uncover the secret of a rumored "super-weapon" Tesla had developed before his death, one supposedly responsible for the mysterious Tunguska explosion of 1908. Feynman makes no claims for the tale's veracity, a caution warranted at the end of the book when his informant is revealed to have been pulp writer L. Ron Hubbard, a participant in the novel's events portrayed as a self-promoting, delusional narcissist.
Malmont bases the Kamikaze Group on the trio of science fiction writers, Robert A. Heinlein, L. Sprague de Camp and Isaac Asimov, who in actual history spent most of the war doing aeronautical engineering research for the U.S. Navy at the Philadelphia Naval Shipyard's Naval Air Experimental Station. He portrays them as engaged in a joint project there to develop super-scientific weapons to help the U.S. win the war, though in reality they worked separately on technical improvements to airplanes and weapons systems. Heinlein leads the fictional project, which also draws on the assistance of other pulp authors of his acquaintance, most notably Hubbard, Walter B. Gibson, and Lester Dent, with cameo roles by John W. Campbell, Norvell Page, Hugh B. Cave, Frederik Pohl, Cleve Cartmill, Kurt Vonnegut, Judith Merril, and Ray Bradbury. Additional historical luminaries such as Jack Parsons, Albert Einstein and Jimmy Stewart also put in appearances.
https://en.wikipedia.org/wiki/The_Astoundin...and_the_Unknown