The game is up for Geoffrey Charles Chamberlain, Sr and Catherine Chamberlain.
You decided not to have a final discussion.
You uncovered the rumored affair between Catherine and Magnus.
You visited every carriage and room on the train.
Maybe focus on the case next time.
You found the blackmail letter addressed to 'C'.
You listened to Klaus' political discussion.
You prevented a tragedy.
You discovered the bottle of strychnine hidden in the kitchen.
You discovered that John Smith was an American.
You questioned every passenger after the incident.