About the book: year / In 1811, members of the Bible Society, Prince Alexander Nikolaevich Golitsyn and Baron Andrei Fedorovich Korf, create a special machine for opening portals to other astral planes. Starting the machine is the starting point for the formation of a new world. But with the next launch, it summons a formidable creature from the deep astral planes - a demon with a thirst for destruction. Having locked him in a special chamber, members of society bury all the facts of the machine's existence. But generations later, in the future, new guards will have to endure a battle with a demon of another world, because his cell is not eternal…