The ENU Zone is a "parallel dimension" of endless urban structures and deadly anomalies.
When physicist Isaac Planck is assigned to document the calamity, he believes he is writing a guide for humanity's survival.
But as Isaac is pulled into the calamity himself, his simple understanding from research evolves into horror and desperation: the disaster is far stranger and deadlier than anything previously imagined.
And somewhere deep within the liminal world lies the reason most of those who enter never make it back out, the mysterious disappearance of the group behind the disaster, and the truth about how to end the ENU Zone calamity.