The base Chachapoya game is expanded by 3 new different adventurer cards. We shuffle the SNAKE Adventurer promo cards into the adventurer's deck, then prepare the other cards as its written in the game rules. THE TORCH: The player leading The Torch card can check the hidden treasure card but he cannot show it to the other players! THE MAP: The player leading The Map card can switch the hidden treasure to the bottom treasure card in the drawing deck. THE COMPASS: The player leading The Compass turns over the hidden treasure card to show it to all of the players. In other cases follow the original game rules. Enjoy playing the game and have fun with treasure hunting! -description from designer