That was it? That wasn't even challenging, and the beast couldn't maintain polite discourse long enough to tell Tony what the hell it was. A hint would have been nice. His memoirs were going to be incomplete now. Further magic-whimsy-bullshit wasn't charming him, either, and he was glad to follow Wanda out of that conversation before it got any more Alice in Wonderland. All he got out of that back and forth was that it didn't really matter what they said to the thing, they were already on a collision course they had no control over. Tony hated not being in control more than he hated magic.
"He digs you," Iron Man breathed as the wall sealed closed behind them, trying to keep the tone light to combat the horrible knowledge that they were trapped (again) in the dark. It was going to be fine, that was why he had a headlamp installed. The other points along his armor dimmed as the power transferred to the largest light in his chest, but it didn't have a very great effect; this corridor was much tighter, just wide enough to let them stand side-by-side, and sloped gently downward into the distance. It could have been a few yards or a mile, Tony couldn't tell, but they didn't have a lot of other options anyway.