Finally, in 1937, a large novel by Grigory Adamov, "Winners of the Bowels," was published in Detizdat. The book was written in the tradition of Jules Verne, taking as a basis his own story "Conquest of the bowels." The hero of the novel, scientist Nikita Mareev, is carrying out a bold project to build a thermoelectric station powered by the heat of the Earth at a depth of more than 10 kilometers. And to solve the transport problem, an underground shell was invented and developed for traveling underground.