It was three years ago that I entered that strange door… and I have not found my way back home since then.
When the king ordered the ‘igh Necromancer put to death, ‘is laboratory just up and walked away!
Lieutenant Andrews, 22nd Imperial Guard Division
I have found the Book of Remembrances in the royal library… a wellspring of knowledge directly from the mouths of great rulers and scholars of the past… my only wish is that I might discover a way to add my own knowledge to this work.
T’Arkia, Imperial High Mage
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?