This Week on Mystery Theatre:Knock-Code Charts & Ancient Alphabets

Can the arrangement of carved squares on the front of a locked wardrobe provide a clue for decoding the tapping sounds coming from within? And what about the red-and-white dragon heads in the center of each square? Could they possibly indicate the language of the coded message?

Those are just some of the questions you and mystery writer August LaFleur will consider in this week’s installment of Prime Stage Mystery Theatre.

The episode drops on March 16, at which point … [more at The 21st-Century...