248 pages; soft cover; full color

Paris, 1933. Rocket, Nuri, and Screech find themselves in the French capital, where a rare and mysterious painting from the middle ages has been stolen from the Louvre Museum-and Nuri's uncle is the prime suspect! The young adventurers are soon hot on the trail of the stolen artwork, and the secret contained within may lead all the way to the most mysterious and sought-after treasure in history.