Me and my friend are trying to do this dungeon, we're inside but after we've first talked to Watson he says "maybe we can deduce katzenstein?" and then there are two doors on either side of him. no of them are opening, how can we get through?
Watson sends you to fight someone (forgot his name) and get a "combination" to open the first door. After you finish the first fight, you will see four red things (sun, bird, ? ?). That is the combination to open the first door. Use the "Plaques" that are hanging on the wall near the first door, and light up the plaques in the order of the combination. Then the first door will open.
BUT, then you have to open the second door, so he sends you to fight someone else, and get the second combination...same as above...