You receive a letter from your childhood friend Randall Ascot urging you to investigate the evildoings of a Masked Man in the carnival city of Monte d'Or. There's only one catch — Randall's been missing for 18 years. Become Professor Layton, a world-famous London sleuth, on a hunt to find the connection between your friend's disappearance and the current plot that's unfolding before your very eyes. You've uncovered many mysteries before — The Last Specter, The Diabolical Box, The Curious Village. Now, you must reveal the man behind the Miracle Mask.