Instructions
Go to the West Hall, just outside of Linda's room on the right. On the wall, click the wand above the gargoyle's head. As soon as the gargoyle's eyes light up, immediately head to the East Hall.
Enter the room of the Green Dragon, and then click the wand above the gargoyle's head. Turn around and click the wand above the handle shaped like a leaf. Enter the secret passageway to slide down into the Great Hall.
Step into the Great Hall, make your way to the center of the floor and click the wand on the hole in the floor. Nancy will then say that she thinks she succeeded in lighting the forge.