By far my favourite adventure module up until now in the history of D&D modules, this is so much fun, packed full of ideas, influenced by some classic fantasy and weird fiction, Castle Amber is the granddaddy of haunted castle adventures, drawing from Edgar Allen Poe, Clark Ashton Smith and other to create a truly expansive story over only 28 pages.

We start off with out characters on some McGuffin mission and then get transported into the Castle, being stuck there and having to solve the puzzle to be able to return to the world of Mystara. The castle is surrounded by an impassable fog and seems to exist in its little dimension… does it remind you of something? Yep, Ravenloft owes much to this.

As the characters unveil the mysteries of the castle and encounter the colorful Amber family (a nod to Roger Zelazny’s Chronicles of Amber) they eventually discover that they must go to a parallel universe where the France-like country of Averoigne exists and where they must travel from town to town to collect quest items to finally break the curse of the castle. Deeply atmospheric and fun this is a true classic.