If we tell you here, and your knowledge impacts the actions of your characters, then that's actually a form of god-modding. It's best to just have him figure it out through the story. If you want to have him directly address Elayne in the Bar (sitting at a table with Trey), I'm happy to get the ball rolling. As fair warning, though, she doesn't have much information, and she's not going to be likely to help hurt Ossanlin.