"Very good. I am sure that we can see your bedroom window from there."
"You must stay in your room. Pretend that you have a headache when your stepfather comes back. Then when you hear him go to bed, you must open the shutters of your window, and put a lamp there as a signal to us. Then go quietly with everything that you need for the night into your old bedroom. I have no doubt that, even if they are doing repairs, you could stay there for one night."