They needed keys and it was hard to see in the dark here, so he used the wall to support himself too. The question was, how were they going to find the key to be honest? It wasn't that bright and the steps were made of stone. Who knows what the key really looks like.

"Or we can break it down," Yuri suggested, "If it's light enough to be forced open."

It's a suggestion but Yuri might be a bit serious.