While this is an amazing conclusion to a phenomenal trilogy, there is one glaring issue that needs to be addressed. The puzzle: now allow me to rant for a moment-generally in D&D it is considered proper to separate character knowledge from player knowledge, however a puzzle/riddle is the exact opposite of that, a 8 Int/Wis Barbarian played by someone with a Master’s degree can solve them in his sleep, while an 16 Int/Wis Divination Wizard/Knowledge cleric played by some high school dropout will never get it. A puzzle, particularly the one here, is integral to advance the story, so if a group gets stuck, or decides to over-think things (especially if they’re wrong) just grinds the session to an absolute halt. Even if they give up and resort to blunt forcing it, most of their resources are drained right before the climactic showdown with the villain after 3 adventures.

I thought this was going to be a 5 star module until I ran it, but I have to take off 1 for the puzzle.