Level-5's forthcoming DS RPG Ni no Kuni will come bundled with a fully-illustrated hardback that will serve as a reference guide to the game's puzzles.
Two new Japanese advertisements for the game, posted below, show how you'll need to refer back to the chunky tome in order to crack a number of the game's brainteasers.
The RPG, a slobber-inducing collaboration behind Dragon Quest IX developer Level-5 and legendary animation house Studio Ghibli, is out in Japan on 9th December, with a PlayStation 3 version due in early 2011.
A worldwide release hasn't been confirmed yet, but Level-5 wouldn't dare neglect us lot, right? Right?