Hey there!
I am GMing a new game and for our next (and second only) session my PCs will be tasked by their current employer to learn more about a specific NPC.
One twist I am thinking about is that the NPC they are investigating is coming from Corulag while everybody thinks he's from the Outer Rim. I'd like my PCs to be ABLE to find this out (but it is not a necessity for my story to unfold in the short term; it's just a bonus for them).
So my first thought was that while talking to him I could have them roll their knowledge (core worlds) skill to give them a chance to find out he's not from the Outer Rim like he pretends he is (and pinpoint exactly where he's from with a good roll). However by having them roll this specific skill that mystery is no longer secret for the players, even though their characters could fail the roll.
Of course I could just let them handle this in their roleplay; they are intelligent enough to understand the difference between their character's knowledge and theirs. But still I have a bad feeling about revealing a key plot point this way.
What would you do in this situation? Could I have them make a knowledge (underworld) or streetwise check first to have them realize the guy is not from where he claims to be, and then have them make a knowledge (core worlds) check to try and pinpoint where he is from? Or could I make a secret roll using the PCs skill, and just tell them about it if they succeeded? These seem to be the two best options I have.
