You are stuck in a locker. Through the vent slits you can see that in there with out is a pocket knife, an envelope some books and a backpack. You can't hear anything else going on outside.

>>85 Wait for help.
>>134 Attempt to open and read the envelope.
>>135 Attempt to read some of the books.
>>136 Take the pocket knife and use it to open the locker.
>>85 Bang on the locker for help.
>>137 [Okay, I've been banging on this locker for a long time now.]