Go back to the start and meet thirteen-year-old, puzzle-obsessed Luigi Lemoncello! Luigi has a knack for games and puzzles. But sometimes it feels like the cards are stacked against him. Until a carnival arrives in town and Luigi gets the chance of a lifetime, the opportunity to work for the world famous Professor Marvelmous, a dazzling, banana-hat-wearing barker who puts the show in showman. When the carnival closes, Professor Marvelmous leaves behind a mysterious puzzle box along with a clue. A clue that will lead Luigi and his friends on a fantastical treasure hunt to a prize beyond anything they could imagine, if they can find it! Can Luigi crack the codes and unlock the box's secrets?