主題詞：Art thefts--Juvenile fiction. ; Hostages--Juvenile fiction. ; Secret societies--Juvenile fiction. ; Adventure stories. ; Art thefts--Fiction. ; Hostages--Fiction. ; Secret societies--Fiction. ; Adventure and adventurers--Fiction. ; Paris (France)--Juvenile fiction. ; Paris (France)--Fiction. ; France--Fiction. ; Teenagers.
Henry, Anna, and Jose, the junior members of the Silver Jaguar Society, are on a mission in Paris to recover the Mona Lisa--but when senior members of the Society are taken hostage, it is up to Henry to rescue them while continuing to pursue the missing masterpiece.