“Hurry, Terry. Everyone in quantum reality Epsilon 1450 just died, and the frequency of reality deaths is increasing.”
“I’m trying Kate, but as we get closer to the Nexus, it’s harder to filter out all of the interference from the different quantum realities. I can barely see the center, and we’re dead close.”
It’s generally believed that our universe is the only universe, but Terry Pliskin and his sister Kate found out otherwise when they accidentally fell through a rift near their home in Brooklyn and discovered a different Earth. Unfortunately that one event started a chain reaction, destabilizing first those two universes and then all the others.