This world was called Sheol by its inhabitants, which at the same time meant an underground kingdom, an unexplored space, and simply a grave. And what else could one call the gloomy dungeons, where a ray of sunlight never penetrated and in which people who survived a global catastrophe seemed to be locked for many years? But a person adapts to everything, and a living example of this is Kuzma, nicknamed Indicoplav, who was well versed in catacombs and even managed to tame a flock of bats, making them guides and assistants. It is to him that the leaders of the warring factions of Sheol turn when they decide to undertake an expedition upward...