I recently mentioned Chip Theory Games, so I went to their Website and found this: Image Source: Chip Theory Games A TMB Pop-Up Adventure? How does it work? Do you play/use it in conjunction with a board game?
Yes, you can play the adventure in the book as a new scenario for the base game. It says it has pop-up pages with new encounters, loot and a villain which you can use with other scenarios in the game too.