Unruh Manor is now mostly abandoned, the main house occupied by a small pack of squirrel squatters; the previous owner, Wu, vanished from the grounds some months ago, his current location unknown. Your sources told you that the basement has a hatch leading down to a science lab, where someone wearing a Chris Titan Mask has been holed up, performing experiments.
Seems as good a place as any to start looking for the Legendary Chris Titan tarot deck, doesn't it?