Unearthing the ruins of a vanished Martian civilization has led to a portal to an apocalyptic, aggressive world, where the echoes of race battles thundered, flames blazed everywhere and demonic priests pestered. The previous research team left behind only SOS signals, frightening with their helplessness and encrypted on the flight recorder as a warning to all outsiders about the inadmissibility of staying here.

The audio messages contain information about strange pataphysical phenomena, suspicious accidents, and a mass obsession of the expedition members. Rare specimens of the fauna of the infernal dimension, collected at the cost of many human lives, pointed to the main mystery – a sarcophagus with ancient writings sealed with an occult pentagram. The die is cast, what remains is being patient and count on luck.