When the boundaries between realities begin to collapse, Robert must navigate quantum physics, strange architecture, and his own fragmented memories to understand his connection to the impossible subway. With reality itself becoming increasingly unstable, he joins forces with a rare book dealer who monitors dimensional breaches and the enigmatic Station Master who maintains the transit system. Together, they race to close a temporal loop before all versions of Daybridge collapse into a single point of catastrophic convergence—a journey that will challenge everything Robert understands about the nature of reality and his own place within it.