After the "Shummer" catastrophe, the world was reduced to ruins, and humans huddled in the huge vertical shelter "Deep Tower". When engineer Chen Kai was struggling to survive, he accidentally discovered that the ruins of the "Styx" project that caused the disaster were hidden at the bottom of the deep tower. He also encountered the "Gardener", a terrifying force that ruthlessly obliterated all civilization in the name of "purification". In order to survive, he was forced to deal with warlords, fanatics and ruthless bureaucrats, integrate his forces, go deep into forbidden places, and uncover the shocking truth that the "River Styx" is a "wound" leading to an alien space. The battle for survival has gradually escalated from intrigues in the tower to an epic war against the purification protocols of higher civilizations and fighting for the future on the ashes of civilization. This is a dark science fiction epic about human nature, faith and struggle in the ruins of civilization.
