I love Bonnie Hunters annual mystery. I have plenty of scraps and leftover yardage to conquer and a bed size (88 x 88" quilt will accomplish that. plus, I think Bonnies mysteries are great skill builders for me. I really haven't seen other mysteries that are designed this way. The Robert Callahan series quilts in McCalls were very interesting but not mystery. 💝. Quiltmaker would probably offer an interesting mystery.