Welcome to a new edition of Witness, the cooperative deduction game for four players designed by Dominique Bodin. Players share in a thrilling adventure composed of 8 challenging cases that combine into one overarching storyline. Each case is composed of a deck of cards, making it simple to set up and quick to jump right into the action. In Witness, players individually learn clues each round and must whisper them to their teammates. Can everyone keep the facts straight and reach the right conclusions, or will someone mistakenly lead the team to a dead end? Your powers of deduction and recall will be pushed to their limits! Witness: On the Trail of the Chameleon - A groundbreaking invention in the fight against climate change has caught the attention of spies and criminals worldwide, all intent on stealing its top-secret blueprints. Your mission is to thwart their efforts, but as you follow the trail of evidence, you realize you are tracking the Chameleon, your everlasting foe.