"Interaction Region"
by Chuck Boeheim
What If?
A science fiction story set in a modern accelerator lab, with a health dose of humor
Available in PDF, MOBI, and ePub

That place where you tripped? What if a prominent but slightly odd physicist told you that's where two universes intersect, and you've just stumbled into a universe that's just slightly different? What if he then recruited you to tour neighboring universes to assess their stability? What if you agreed to help out, then realized when you went home every evening, your spouse was a slightly different person?