"Right, hang on a bit though," Fred said, digging something out of his pocket and attaching it to his ear before he dropped the other end to the floor and kicked it under the gap in the door. There was nothing he could hear, though, in the room. Not for a minute, at least, and then he heard footsteps.
"Definitely someone in there, walking about," he said to Roger, before rolling the ear back up and sticking it back where it belonged.