There is a war going on not on Earth and not even within our Universe. Without knowing it, Arseny Vasilyevich Goltsov, a man endowed with a unique gift and chosen because of it to the role of exor, operator of reality, does not allow it to end... During the next expedition in Mongolia, traveler Oleg Severtsev, under tragic circumstances, finds an interesting device that looks like unusual looking watch. Through trial and error, Severtsev gradually learns the purpose of the device, and this radically changes his ideas about the structure of the universe... For the first time, two action-packed science fiction novels about time under one cover! Contents: By the Time of My Tears (novel), pp. 5-352VVG, or the Power of Time Harmonies (novel), pp. 353-733