Raoul closed the curtains quickly to hide her escape route.  He knew he would be caught there was no way to keep that from happening and so he decided to use this opportunity to keep them from seeing where she was off to he stumbled out the door of her room like he was trying to run and feigned surprise at seeing them come up the stairs.  He hobbled quickly away from them towards Alyx's room hoping that in the process of all this he could hurt the bastard that was leading the group.