The image below says it all really. In the latest edition of the Official Nintendo Magazine there's world exclusive teaser for a "stunning new game".
All we have to go on at the moment is the hint that it's a horror game ("Are you scared? You should be...") and a photograph of what looks like a system of pipes that conjures up images of the cramped insides of a submarine, a boiler room, or a factory of some sort.
The game will be revealed in next month's edition of the magazine, which comes out February 13th, although you wouldn't want to be against the details leaking out well before then.
Any ideas what it could be?