Goldie Roth lives in the tyrannical city of Jewel, where impatience is a sin, and boldness is a crime. Frustrated, Goldie runs away. She finds herself in the Mysterious Museum of Dun, where she meets a boy named Toadspit, and discovers the museum holds terrible and thrilling secrets. Only a thief can understand its strange shifting rooms, and fortunately, Goldie has a talent for thieving.

Playing the game you're to spot the differences. If you do that fast, you'll get some bonuses.Your task is to get as many points as you can.

But as soon as you start playing you realize that this isn't an ordinary museum. And it is even stranger than you thought. Sometimes the whole building seems to... shift. As if a huge sleeping beast has woken up, turned around and gone back to sleep again. And when you step into the next room, it is not the one you were expecting!