Tentatively you creep up the stairs. It seems like every stair has a different place that it squeaks and a different horribly high pitched frequency. As you step on the twelfth stair and it makes no sound you let out a sigh of relief, but the next stairs also squeak!
Finally, after a very tense minute, you are on the upper floor. It appears that this floor is significantly smaller than the main floor. The architecture of this place would make you dizzy if you thought about it too much.
There are three directions you can go.