Ok I would go on and get things rolling, but wanna give everyone else a chance to make it into the room -- and have reactions to the info so far -- before I make an assumption that the characters are cool with this bombshell. XD

Edit: Just a reminder that no one is obligated to do (or not do) anything. You're all totally free to explore this world, or do something crazy or potentially plot-breaking, if that's your character's whim. Total freedom is yours.

Also, before the question inevitably arises: language! Everyone is able to understand everyone else. As far as your character is concerned, everyone is speaking your character's native language. There will be explanations IC eventually.