The path he came from had been replaced by a wall trapping him between two walls, it took him some seconds to realize that the wall was gradually closing in.
"Shit, what the hell is this" Xavier shouted as he placed his body on the wall trying to push back in an attempt to stop it.
His attempt was futile as the wall kept moving him backward slowly, and he knew what would happen if he didn't find a way out of this soon; he would be squished to mush if he didn't find a way to escape.
Xavier began looking around; if this was a trap, then there would be a switch or fail-safe somewhere; he wasn't even sure how this happened. He didn't touch the walls, and if he had stepped on a trap, he would have realized, and the wall came out of nowhere.