Ardah has already been millions and millions of years, millennium after millennium passes from one time to another, in order to fulfill its mission - to find those geniuses of the Earth's humanity who will be able to give rise to a new race of telepaths. And so, at the beginning of the twentieth century, he managed to do this... Only now, along with this, the opening of the "Plague" took place. Henry Kuttner. From the depths of time (novel, translation by K. Savelyev)