Mansion Escape: Master Bedroom

[MsInterpret]

You wake up locked in the Master Bedroom of a mansion. Escape the room by locating items and use the objects to help you escape the Master Bedroom! Don't forget to check the bookcase and around the big-screen TV...

http://www.bored.com/game/play/151407/Mansion_Escape_Master_Bedroom.html

Please use spoilers for hints and walkthroughs:
[spoiler=Title Here]Enter text here...[/spoiler]

Please do not post a video walkthrough for 7 days.

[old biker]

got stuck in view of desk :

[Kzin]

stuck with a note a part of a key and some glue....I know some things that I have to do but have no clue what to do

[CallMeMrsC]

I'm not liking this one. The note that says it looks like sudoku doesn't look like sudoku to me. The bookshelf clue is confusing. I'm unmotivated to figure this one out. Old Biker, you're usually first. I'll just wait for you to say you're out =)

[donaud]

Strange game. "Finished" it by simply

Finding THREE pieces of a key. Didn't even have to use it on a door !!

All 3 pieces are in the books.

D minus

[NannaJoy]

got key .. so? no door that I can see.
don't need a door .. dumb.
out via magic

[Erika]

Hm... that was no fun at all...

I just collected glue and checked all books by clicking on them without any sense and then I was out. I never solved the sudoku-riddle oder the sun-riddle.