An animated walkthrough. Watch a round happen a beat at a time, then meet the cast and look up the expansions.
The leader names a party. The whole table votes on it — not just the people riding. If it passes, only the riders play a card, face down. One Fail sinks most quests. The cards are shuffled before they are turned, so nobody learns who played what. That argument is the game.
Everything anyone knows for certain comes from one minute at the start: the traitors learn each other, Merlin sees the traitors but not Mordred, Percival sees Merlin and Morgana without being told which is which, and the loyal servants are shown nothing at all.