The Back Door appears to be the "Instruction Manual".
While they were here, Joey and I went out the Back Door and panned a little gold.
As soon as winter shuts down the Back Door, we'll be back at the Ethiopian site.
Or you can use the Back Door to hop between two rooms - it takes you back to the room you were in last.
The Back Door: The area to the side of the key where people frequently lurk to make a quick move to the basket.
The Voice at the Back Door (1956)
However, the Hopi say that other peoples came through the Back Door into the Fourth World.
Out through the Back Door, what I tol' you about.
The Back Door was a way out of the city via the sewers.
Waiting for a minute and a half, he rendezvouses with the other Autobots (In Through the Back Door).