The key to that maze can be SEEN by pressing the M key for map. This allows you to see where rooms are that need to be (solved) to enter them. This works equally as well in every area to SEE areas you might have to find a function to get in.
Friendship is like peeing on yourself: everyone can see it, but only you get the warm feeling that it brings.
This works equally as well in every area to SEE areas you might have to find a function to get in. 
