I need help in tower of the library

somali23

Hello, I am Spanish, I am stuck in the tower of the library, on the ground floor, came to an area where there is a statue of a lion, disable one door, then another, but where there is no statue or anything, and not is that I do, there are only a stone glass, please help, thanks

Stubu

If it is the part I am thinking of you have to throw light crystals on the status when the sunlight through the window is on them. It is very difficult and I believe I did it by luck rather than planning.