I have completed all parts of Superheroes 2. I am only missing 1 piece of the treasure to close out the game. I have found the missing treasure but I cannot get to it. It is in the challenge area of Superheroes Academy. It is surrounded by candles in a library. No matter what I try by moving the switches nothing happens. The candles are all lit and burning. What is going on and how do I get to the treasure. Help please.