I just got an email about this, probably because I bought the recent Space Hulk printing. Since Space Hulk sold out in a number of days, if you are interested at all, you may want to jump on it.
A brand-new boxed game, Assassinorum: Execution Force gives four Imperial Assassins an incredibly important mission - slay Chaos Lord Drask before his dark ritual brings about the end of the Imperium itself! A fast-paced co-operative game for one to four players, it blends stealth, tactics, subtle forward-thinking and outright blazing violence into a fantastic, tense, action-packed experience that is accessible to board game players of any level.