Hm, actually ... if we go by the black hole that Caliborns black kernelsprite turned into, which the Alt!Caliopes kernelsprite very much mirrors, like everything those two do, then maybe it'll just transport them somewhere.

It is possible it leads somewhere, for all we know Lord English and Vriska were thrown into the Problem Sleuth Universe honestly. I’d like to think that one is a proper, just. Matter-crushing Black Hole.