1. take the poster down & shove it under the door
2. there is a key under the pillow. Use that to open a locker. get a screwdriver from the locker
3. use the screwdriver to take the picture of the elephant down
4. take the screw you get from taking hte picutre down
put the screw through the keyhole
5. pull the poster back, it should have the screw & key on it.