Doctor Brain's Portal
An interdimensional portal was created by the supervillain Doctor Brain and his henchmen in Reality Z-25 31-H in a warehouse. It was a huge machine powered by the shifting energy of a dimensional traveller he had captured, who he believed to be Jenny Everywhere, although she was actually an incarnation of Jenny Nowhere.
Doctor Brain intended to use the portal to send everything in the world that frustrated him into another dimension, including annoying paperwork, I.R.S. auditors, and superheroes. However, moments after the portal was first switched on, a Monstrosity from another dimension began trying to break through. Brain's nemesis Captain Evening intervened, breaking the connection between Jenny and the machinery and thereby switching off the portal. (COMIC: Tales To Behold)