Endless Universes Fall into Darkness

To alter time, one first needed a complete timeline. Only then could Barry follow the course of the timeline, find the initial point in time where all the problems began, alter reality, and affect the predetermined trajectory of the future. Yet at this moment, with the timeline suddenly severed, his plan could no longer continue. The source of the darkness was unfathomable, as though it were intertwined with time itself. The endless void and hollow reality left even The Flash at a loss.