Professor Layton and the Azran Legacy is the final iteration in the current trilogy and is due to arrive on 8th November in Europe, while North America will get puzzling next year.
The 3DS title will of course be available in the eShop and will be a fair sized download. You'll need to have 7,309 blocks available in order to get hold of the digital version, which is just under a GB at about 914MB.
To put that in perspective, Super Mario 3D Land takes up 4,096 blocks (512 MB), while Mario Kart 7 is 8,192 blocks (1 GB). It seems Professor Layton and the Azran Legacy has quite a few puzzles crammed in there, though file sizes aren't the most scientific indicators to how much content is available in a game.
Professor Layton and the Azran Legacy sees the puzzlemaster himself combine with his companions Luke and Emmy to solve the many vexing enigmas of the Azran civilisation. Though it will be available at retail, the digital version may be appealing as you can quickly dive in and out of puzzles without switching cartridges.
Will you be downloading a copy of Professor Layton's latest adventure? Let us know in the comment section below.