He is called a genius, prophet and ruler of the Universe. His inventions changed the world and became the foundation of modern civilization. He is credited with incredible discoveries that could not only make people happy, but also destroy humanity; he is suspected of involvement in a monstrous catastrophe known as the fall of the Tunguska meteorite, and the creation of a truly diabolical weapon, terrible death rays, which, in his own words, are able to split the globe... But Nikola Tesla hated death, so he also invented a life ray generator - like living and dead water, like two sides of the same coin, like a two-way road piercing countless worlds. And on his last day on Earth, January 7, 1943, the great scientist sent an encrypted message to future generations. Will we be able to unravel its hidden meaning? Will we be able to use it? Will we find out the main secret of Nikola Tesla? Will we solve his riddle? Read the new book of the “Declassified History” project - the first scientific detective story about a brilliant inventor!