Here’s a quick one for Dark Heresy (just in time for the new edition!)
Those were the last words of the Inquisitor, the one woman responsible for your current employment as part of the Inquisition’s Ordo Hereticus, those charged with finding the threats that lurk within the Imperium of Man.
Ordinarily, your band would be disovled by her higher-ups, and you would all be reassigned to other duties, perhaps among other Inquisitors, or even in the Imperial Guard.
But those last words haunt you.
Whoever murdered the Inquisitor knew what she was investigating, and to simply disband was unthinkable.
Someone has to bring her killer to justice. She gave her last command. You intend to follow it to the letter.
Without an Inquisitor, any form of investigation would be a breach of conduct that could very well mean your execution if you were caught. Navigating the byzantine nature of the Imperium’s power structures while hunting down her killer would be a monumental task, but you were all chosen for your specialties to ferret out even, even if it hid within the beating heart of the Imperium.