Yeah, that's exactly what it is. It'd explain why none of us even knew about this place 'til we got here, ya know?

[Now, it was true that Bruce had a habit of not telling Jason everything, and that annoyed the heck out of him. Still, something like this? A weird, interdimensional prison? He's pretty sure he'd have told him about that.

...well. Maybe.]

Time works pretty funny here, too, in case you haven't noticed.