FML, I finally found the library, and there's a mineshaft going through it. Notch really needs to fix structure generation, this abandoned mine and cave system has loving torn apart my stronghold. I should go to the next coords.
On top of that, one of the bookshelves was out of place. I think Enderman was here.
Edit: I actually looked around. Giant cave eats out the floor, and as you can see the below uploaded image, the mineshaft takes away the ladder to the upper level. forget this place, I should go look for the other Strongholds.
Edit2: Is that part of a dungeon mixed in with part of the abandoned mine mixed into my Stronghold? Holy forget, this is forgeted up bad.
Edit3: 
What the hell was it trying to do with this ladder? It's not near the library... The forget?