TL;DR - Would you narratively force a character to make an action without letting them roll to stop it if it helps the narrative of their personal story during a one on one session?
I have a player who just fell to the Dark side of the Force in my FaD game in a group of Light side aspiring-Jedi. This was something he planned on, his character was always making the "bad" decisions and we planned that he would fall, have a private session with me where he does some terrible things that make him want to go back to the Light side.
The one on one session is coming up and I wanted to make it memorable, but also kind of dark (he asked for that) so his character can experience true evil thoughts and actions. I planned on having him go to a Sith cult shrine and finding an artifact with the "soul" or "Force-essence" of a long-dead Sith. He will pretend to be his Father (he has amnesia and only remembers his father was the leader of this cult from long ago) and it will tell him to steal a jewel that he could fashion into a powerful lightsaber.
Once he gets on track to steal the jewel, while he is stealing it he will encounter a young girl (think 8-10 years old) who will catch him in the act. The artifact will speak to him and tell him to kill her so he isn't discovered and that he must make sacrifices to gain power. This is where I run into the conundrum, do I have the artifact "possess" him by filling him with a white-hot rage and make him kill the girl without being able to stop it? I know he wants to do something terrible, but in the moment I have a feeling he will back off because he feels bad about it (player knowledge, not character knowledge).
Should I risk making it a check the artifacts influence vs his resilience? I was thinking since much of this session will be narrative it would make sense to narrate that he kills this little girl without giving him an option...is this a bad idea or can you think of some other horrible decision I could have him make...like 2 horrible decisions, kill the girl or maybe kill a bunch of innocent people if she starts screaming that he is stealing from her parents?
Edited by Ender07