<Yay! We are moving forward!>
Mr. Stick is not sure what to do next...

Not so long ago, he made a long analysis in his mind of everything he has at this moment, but it didn't bring any results at now...
He tries again.
Ok, I am almost 100% sure I didn't miss any clue or item in both rooms...
Now, back to the list of items and room objects with unknown purpose, or their purpose is known, but still there's need to do something with them.... I can analyze and make comment on every option.- Door in upper room. I HAVE to find the KEY and open it.
Well, I HAVEN'T a key at this moment, so I can't open a door right now.- What's the meaning of some hidden writings?..
I'm sure they have to do with something, but at this moment, I don't know. Maybe they are clues for future puzzles.- What two holes in lower room are for?
I can insert metal rod in one hole, but nothing changes in both rooms, and, considering both previous holes changed something when I inserted a rod inside, maybe something is changed in some other place?..
Nothing from my inventory can be insirted in other hole, so maybe I can't use it... for now. - What big blank paper is for? There's no hiden writings on it, at least the same as on walls. Or was its sole purpose is to cover thin metal rod?..
I have no clue. Maybe at this moment, it hasn't any use.- Purpose of the screw at the end of long metal rod?
I can't attach anything to this screw at this moment, or vice versa. Maybe in the future...- If the tool is just screwdriver, why it looks so strange and has extra tip?
I have no idea. At this moment, I managed to unscrew metal plate in chest, using middle tip, since this tip has a thin form that fits with screws' slots... What other tip is for? What form does it have? Did I ever inspect this tool more closely?..- What mysterious symbols on small paper mean?
I have no idea... My imagination can see drawings of two certain items I have in my inventory right now, but maybe it is just imagination, since I can't see how these two items can be combined or something at this moment.... Speaking of certain items...- This solid metal box has something inside... Maybe its purpose to be opened somehow?
... I HAVE to open this box! I feel it! Am I sure I can't open it in any way at this moment?..