Flashpoint

A Flashpoint is a localized phenomenon occuring when a sub-dimensional pocket tears free of its parent dimension. The resulting "wound" in spacetime disintegrates the boundaries of the smaller pocket dimension, causing a massive implosion of energy as the sub-dimension expands rapidly in every conceivable direction. The exact location a flashpoint occurs in both dimensions is known as a dimensional scar, and is the sole linking point between the parent universe and this new universe.

At the end of "Double or Nothing", Nubason's defeat is revealed to be a catalyst in the destabilization of N-Space, Nubason's pocket dimension in which he has been hiding. Richard and Klaara hasten to get out, but the Flashpoint catches them both, throwing Richard into our universe and Klaara into the remains of N-Space.

In "The Highest Stakes", when Richard finally crosses back into N-Space via the dimensional scar, he finds that the tiny pocket dimension he'd explored previously was gone. In its place was an entirely new universe in which our laws of physics did not hold sway. He had to design and construct, with the help of Commander Bordra, the Edge Suit Mark III/B just to survive N-Space's environment as he searched for Klaara.