A few weeks, at most. I'm testing the limits of my powers, with this, and I want to make sure I can bring you all back here, unharmed. So not very long at all. This is truly supposed to be an exploration mission, and if you can manage to do something, if you want to, then you can.

[ she scratches her cheek in thought. ]

And during your time here, you can certainly use it to explore and figure out what's going on here, if that's what you'd like to do.