Similar in setting to "Loch Ness Mess", this one is also on the top of the list with all the secret passages in a mansion, and other classic Scooby getups. The highlight is the knight in the bed, and then it drops into the secret library with apprently no way out.
Really liked this one. I actually appreciated that there were no potential suspects this time around, made the mystery and settling the more unsettling. I also liked Meadowlark's bald jokes. I do have a major gripe, and that's with how I feel like they really stretched out the plot, especially with the last act being a globetrotter game, but otherwise it's a solid Scooby episode.