In The Mystery of the Mona Lisa, Jack is sent to the Louvre Museum in Paris to track down the theft of the worlds most beloved painting. He must match wits with a seemingly invisible mastermind in order to stop Leonardos masterpiece from slipping into the criminal underground forever. Can Jacks Hypo-Disk overpower a glove that shoots laser beams from its fingertips? Jacks adventures in the city of light demonstrate once again that when it comes to outsmarting the baddies, Jack is the go-to agent with endless tricks up his sleeve.