Behind you you see that the building was black and cross-shaped, and
though you wonder what it could possibly be for, your curiosity is
soon stifled by what appears to be everyone in your old village being
forced to work by fire nation soldiers.
You touch the key to the forcefield, and it disappears. You take a
step forward, cautiously, but nothing happens, so you start walking
forward down a long corridor lit by fiery orbs on the ceiling and the
occasional door, to the left or right, inaccessible by your very
limited (though very heavy!) supply of keys. At last, you see a
clearing up ahead, and emerge in front of what looks like a village.