Layton: Diabolical Box in HD is the enhanced mobile game port of the popular Professor Layton series and its second game, Professor Layton and the Diabolical Box. A well-known adventure puzzle game released for the Nintendo DS on 2007, this sequel follows the next case of Professor Layton and his self-proclaimed apprentice Luke, as they travel cross-country by train to solve the mystery behind a strange box that is said to kill anyone who opens it. This HD version of the game has been beautifully remastered for mobile devices, still containing the very same enjoyable world and gameplay that Diabolical Box had delivered to fans years ago.