I'm planning to use TWBTW if my players enter a portal they will likely encounter. Will be ignoring the Carnival completely. Some of my ideas and questions:
-the portal in question is in a forest the party will be visiting for other reasons. I'm planning on planting some fey residents of Prismeer in the forest: folks who fled or who have been exiled due to the shift in Prismeer.
-I'm thinking of doing away with Zybilna's dual identity.
-party will either be 5th or 6th level when/if they use the portal, so I'm going to have to beef up encounters (although I am hoping that they will choose non-combat solutions when possible)
-I wish there was a map of Brigand's tollway.
-In the slanty tower encounter, it is mentioned in passing that the players might be able to open the cage without the key, but no ideas are given for how that might happen. Any suggestions?