There are two of them - twelve-year-old orphan Gleb and free stalker-lone Taran. They face a difficult path, filled with mortal dangers, the pain of loss, and fear for their newfound family. But no matter how difficult the trials in store for the daredevils may be, as long as the inhabitants of underground Petersburg in 2033 have not forgotten how to dream, the journey will continue. But the search for answers often leads too far, and the road ahead holds many mysteries. Sometimes to solve them you need to see clearly, letting the light of hope into your soul, and sometimes, on the contrary, you need to go blind, plunging into the darkness of despair. But there are also those for which you just need to believe in your own strength, go to the limit... and look beyond the horizon! The legendary trilogy of Andrei Dyakov! Three top awards at the annual Best Book of the Universe ceremony! Translation into six foreign languages! Love of tens of thousands of readers around the world. Find out why!