"A tremendous treasure, belonging to the kings... The treasure of the Hollow Needle is legendary; royal gold, battlefield booty and stolen money are believed to be hidden away in a secret location. Gentleman thief and friend to the poor, Arsène Lupin is eager to solve the mystery of the Hollow Needle and find the treasure within. Up against keen boy detective Isidore Beautrelet, however, has Maurice Leblanc's master of disguises finally met his match?"