Tony tucked his face against Bruce's neck at the warning and very cautiously peaked out at the lit room as Bruce started moving again. Well, this was a lot of decisions to make. He finally slipped off of Bruce's back, spinning around once he hit the ground to take it all in and maybe find some inspiration, muttering, "It's all a learning experience..." He would have just picked a door and carried on, but the spark was flashing through her colours and Tony want to at least be somewhat prepared for the trap that was definitely laid. It was the door right smack in the centre that seemed to get her the most excited, so Tony had to assume that was the one they were supposed to never go through. Wand raised, he stalked straight for it.
The spark suddenly swelled with red light, but it was a moot warning because there was a horrible crack from somewhere above them as well. While Tony froze and stared up at the ceiling, all of the doors that he had chosen to ignore flew open, and out of them slithered...black cloaks? Shoulders up in a panic, Tony slowly backed toward his chosen door, eyes darting between these creatures, Bruce, and finally the spark which seemed to be trying to process as much as Tony was. He had been much happier nuzzling up to Bruce, he should have stuck with that.