More and more promotional pictures of "Fringe" have come out and instead of giving the ordinary, the one-sheets contain a mystery element.
The individual shots of the cast include a picture of someone's shadow on the door, which is different in one picture to another.
The second season is premiering September 17 on Fox. Creator J.J. Abrams said the new season is about "getting to know the enemy" and will be "a massive turning point in the long-term arc of the series."
On related news, the complete first season of "Fringe" will go on sale September 8 in DVD and Blue-ray. To promote the release, producers are launching a special website called Complete the Pattern where fans can participate in the challenge to win a special prize. By inputting an email address, participants will get to Phase 2 and receive a secret clip.