I'm stuck in the forest-room, I removed the carpet but now what?
There's nothing left to do in the forest room once you've gotten the item that was under the carpet. If you're missing the other battery, try taking another look at the stuff on your balcony. If you can't find your way back to the clock, try breaking stuff or moving stuff around (there's two routes back, but one of them is way more obscure than the other).