He closed the window, banishing the cold to the outside. He then turned to the door, locking it and trying to find some way to jam his hammer in to keep it closed. Sadly, he found none. The compartment doors had no windows to the hallway of the train, for which he was grateful. He looked around. He tried to make out what the light above him was. It appeared to be built into the ceiling. His gut clenched at the possibility of a gas light that he couldn't turn off. If it was behind glass and not exposed to him, he could deal with it. A little.