Trapped in the mysterious Castle Amber, you find yourselves cut off from the world you know. The castle is fraught with peril. Members of the strange Amber family, some insane, some merely deadly, lurk around every corner. Somewhere in the castle is the key to your escape, but can you survive long enough to find it?

An adventure module based on the writings of Clark Ashton Smith. The second part of the adventure (after the castle) actually visits the Averoigne setting itself. Introduced a number of new monsters, including the brain collector, lupin (dog people), phantoms, and the magen.