Opens (unlocks) a new, hidden level titled: "the Door to A Mystic Treasure."
Start or continue a level. Click the Menu option on the right side of the 
game window. (Alternatively, open the Options screen, from the main window.)
Select the "Credits" option. Allow the list of creator names scroll to the 
end. A cube (block) will appear and scroll up from the bottom of the window.
Drag and drop the block on the shoulders of the worker that appears to be 
holding an invisible block. The worker is located on the lower right side 
of the window. If the block is placed properly, a message will appear 
stating: Victory! The door to a Mystic Treasure has been opened. 
A new LOST WONDER is now available! Click ok to close, and play the new 
level. If a level was in play when the above actions were followed, the 
level will continue after you complete or quit the unlocked level.