Find the Golden Skull

Get into the kitchen through the SE door in the main hall of the Academy.  There is a secret door in the North wall between the fireplace and the armoire. The passages beyond are dark, with dangerous pitfalls.  If you wait, a ghost carrying a lantern will go through the door - follow him down to the underground cellar.

Wait here, and a second pathfinder ghost will appear - follow him.  After you cross the plank, crouch down before moving on - there is a spitball trap here.  Turn right (South) at the spit gun, then left down the steps to the statue.  A third ghost with a lantern  patrols here. Turn left, go along the boardwalk and then follow the passage all the way to the temple.  The Golden Skull is on a blue pedestal at the back (East).