Calling all puzzle-solving enthusiasts, because Sherlock Holmes needs your help solving these 10 unsolved mysteries! Use the cipher wheel to crack codes to reveal secret messages, the magnifying glass to get a closer look at clues, and the fingerprint kit to get the DNA of the culprit! Each kit includes a magnifying glass, pencil, 40- page notebook, 8 evidence tags, 15 spy challenges, cipher wheel, spy pen, fingerprint kit, 10 unsolved cases files, and solutions. For ages 8 and up.