Universe (Tales To Behold)
From Jenny Everywhere Wiki
In Reality Z-25 31-H, Doctor Brain tested his interdimensional portal harnessing the shifting powers of “Jenny Everywhere” by opening a gateway to another dimension where he began chucking unwanted paperwork. However, an eldritch monstrosity began to cross over from that world to Doctor Brain's, forcing Captain Evening to intervene to close the portal. (COMIC: Tales To Behold)