[from
here]
This was a cafeteria. He knew the moment he entered even without light and no memory of the location. The size of the room and the smells it provided were enough. Sai was well used to working in the dark even before coming to the Institute, however long ago that had been, and he was sure he'd have no difficulty navigating through this area to get to wherever they needed to be, as long as their luck continued to hold out and they didn't run into anything dangerous.
Again, he had to rely on the taller man for guidance, as he was at a loss as to why they had to go through a cafeteria and possibly a kitchen to reach the stairwell down to the basement. Then again, he was at a loss on a lot right now, and add building structure should be the least of his worries. As long as he knew where to go and there were people waiting with answers...
He really hoped there were people waiting with answers.