Large enough, but kind of cramped, so it's a relief that the first time she presses it the walls and ceiling crumble (covering her in plaster dust) revealing a huge sprawling evergreen forest and overcast clouds overhead that are drizzling lightly.

The forest continues as far as the eye can see from this vantage point in every direction, save for what may be some kind of castle on the horizon to Qhaellizith's left. It's hard to tell from this distance, but certainly at least some large structure.