Einsof is a mysterious infinite-dimensional object, a kind of “crossroads” of the branches of the Dendrocontinuum. It also becomes the point where the interests of the Executors intersect—those who decide to “improve” the Universe according to each of their own understanding. If Einsof turns into yet another black hole, a war will begin in which humanity will be nothing more than a grain of sand under the feet of giants. Realizing this, Klim Malgin, Aristarch Zhelezovsky, and their friends in the present and the future try to prevent the fatal experiments. But the trouble is that those they are protecting—driven by the dark will of Daniil Shalamov, who has nearly stopped being human—begin a real hunt for the Resistance’s participants…