Paris, in the year of our Lord 1313. While a party is in full swing in the square in front of Notre Dame, Adam, the young and ingenious goldsmith in the king's service, mysteriously disappears. Who wants to bring him down and why? What secret invention was he working on? His brother Jacques, the actress Rosamund and Pierre de Cinq-Ormes, a young stableboy from the court, will all go in search of the truth and defy all taboos. Take turns playing the 3 heroes, and don't forget any one of them! Each of them needs help from the 2 other people to investigate this mysterious disappearance. Will you be able to outsmart the many traps you'll find along the way? Will you be able to piece the clues together in time?