On this level so far I've met up with Sophia and she's been taken away at gun point. I've found the treasure behind the big gong, and behind the crumbling rock, and behind the door. I them picked up an aluminium key, but I don't know where to use it. Can you help me.
You will use the aluminum key a little later in this level to free sophia from her cell.
Have you used the whip on the statue's arm to open the door on your right?
If so you're close to where Sophia is held captive.