Clotaire Chantal is opposed by Raulf Beautrelet, a young but gifted amateur detective, who is still in high school but who is poised to give Clotaire Chantal a big headache. In the Clotaire Chantal universe, the Needle is the second secret of Marie Antoinette and Alessandro Cagliostro, the hidden fortune of the kings of France. The Mystery of The Needle hides a secret that the Kings of France have been handing down since the time of Julius Caesar... and now Clotaire Chantal has mastered it. The legendary needle contains the most fabulous treasure ever imagined, a collection of queens' dowries, pearls, rubies, sapphires and diamonds... the fortune of the kings of France.