We'll be releasing a new series of Mystery Puzzles (where we don't tell you what the image is) in January. Here's a sneak peek at one piece from Mystery Puzzle #11. The image is a Japanese print that we think you'll love, and it will be around 140 pieces and a bit of a challenge. We'll get this one up on the Coming Soon page so you can ask to be notified soon.
You’re right, we hadn’t announced Mystery Puzzle #10 yet, it will also be out in January and will be a “brightly-colored family friendly piece,” but we don’t have an example piece for it yet to show you. We also expect to have in-stock in January Mystery Puzzle #12, which will be a “brightly-colored cheerful French cubist painting.”