When the wealthy Baron Augustus Reinhold passes away, his will reveals a hidden treasure in the village of St. Mystere. Unable to locate the treasure themselves, the baron's family calls upon renowned puzzle expert Professor Layton and his apprentice, Luke, for help. Upon the pair's arrival, their search for the treasure is interrupted by the suspicious death of another member of the Reinhold family. Now with two mysteries on their hands, Professor Layton and Luke must work their way through the village's many puzzles, riddles and brainteasers to find the truth.