In Witness: On the Trail of the Chameleon, you and three friends are secret agents of the 'Witness Agency', trying to unravel an international plot full of espionage and crime. The game starts with a prologue introducing the case, and each player receives secret clues. Then comes the fun part: in four 'whisper' rounds, you'll pass these clues along, following the direction on the cards. In the first round, everyone only whispers their own clues, but in the following rounds, you also pass along what you heard before. After all this exchange, it's time to secretly answer three questions about the case. Those who get it right earn valuable points! The adventure features eight individual cases that connect into a larger story, involving a groundbreaking invention against climate change and a mysterious villain called 'The Chameleon'. Get ready to work as a team, pay attention to details, and test your memory – because here, every word counts!