I'm down in the dungeon that has the mushroom.The problem is I've come to a room with a locked door.I can see beyond the locked door,that there is a ground lever,but I can't get in there.I picked up the key in the room behind the wall,but it doesn't open it.
Thanks in advance.

Puck

Jesus saves,and Thornton scores on the rebound!! "I'm coming and Hell's coming with me" "I'm Not Gonna Let Them Catch The Midnight Rider" Gregg Allman