Seriously, I too dismissed it as a fancy visual novel with point and click logic, it's not. While the game only gives you a note to go off of, it is designed to be intuitive and easy to figure out the logic just by clicking randomly. Best analogy I can think of is fiddling with an old toy that has secret compartments, you experiment with the buttons until something happens, and if you get stuck you can find the manuel inside the messy drawer that's nearby. I will give this tip for free though, try holding down the lever.
