As she reached the door, an unpleasant surprise greeted her as she heard a loud rumbling... followed by a loud  crash as a giant block suddenly  falls from above with a loud crash.<br/><br/>When the dust settles, she would find that the block has effectively barred her from going back from where she came from. The only way is forward and through the door in front of her,provided that she took the Silver Key from the box earlier.  What lies beyond the door is still yet unknown, so it is preferrable for her to be careful.