Planescape review: The Ruins of Pelion

For the last three years, I've run a Planescape1 campaign through almost all of its modules. Now, after successfully finishing it, I want to look back and review these adventures, highlighting the pros and cons of each one. Each module will be rated in three categories, up to 3 points in each: Presentation: how easy it is to understand and run the adventure. Openness: how open the adventure's scope is, regarding the freedom of choice. Quality: Overall quality of the adventure, including the originality and richness of its content, and players' enjoyment. The full list of currently published reviews is available under the planescape tag. The Ruins of Pelion Designer: Monte Cook Source: Dead Gods:2 Out of the Darkness, Chapter VII Party: 4-6 characters of 6th-9th levels Play-time: 1-2 sessions Locations: Arborea / Ossa (L2) / Elshava, a floating city Arborea / Pelion (L3) A "parallel" counterpart of The Vault of Drow chapter takes the party to the deserts of the deepest layer of Arborea…