"And Arathinos brandished the Foe-Reaper, and let loose a battle cry. He stood, with rain pouring out of the heavens, on a mountain of bodies. The rain washed the blood through channels in the corpses. Arathinos raised the Foe-Reaper and saluted the fleeing enemies before him, as lightning crashed around him.
The Foe-Reaper is a great blade. With the years spent in Arathinos's hands, it has taken up a myriad of powers. And most prominent among those powers is dramatic effect. What is more morale-sapping than seeing your enemy with a backdrop of lightning, as if the arrows of the heavens stand with your foe?"
MADDS - the impregnable Planetary fortress system of the 25th Century
The six demonic legions are extremely structured compared to their seemingly chaotic nature. While to the outside, those looking in to the hate and rage filled beast of nightmares all that is seen is a lust for blood and death and suffering. While that is true to some degree it is all for a purpose and all for a reason.
This is a detail of the structure of the demonic military ranks and their leaders.
The tradition of Battle Sashes is only a century or two old. It started in Celedor by the River, but it has been adopted in every part of the WestLands. Now the complex code of knots and colors allows Elites to know "who is who" as well as their affiliations.
A vicious murder happens in a town that the party happens to pop in at. Under heavy suspicion as they are strangers, the party is forced to discover the perpetrator or have their reputations blackened, especially as more and more murders occur in the town, and mysteriously stop and restart when the party leaves to go kill off that evil necromancer who kidnapped the princess.
The only problem is that a demon, possessing one of the party, is the perpetrator. And the demon makes no signs that its living in the PC's head.
In fact, for all the party knows (except for the possessed person's), their companion is an evil murderer.
Do they try and execute their friend as he's a vicious murderer, and no evidence points to demonic posession? Or do they flee town with him, trusting him, and have their reputations destroyed?