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Melissa & Doug ON the GO Secret Decoder Set Book

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You can crack codes uncover hidden clues reveal secret messages and be a super sleuth with this deluxe kit! Featuring 3 unique activity books (Secret Decoder Seek & Find and Secret Message)
  • 2 magic-reveal sticker sheets 2 decoder wheels 2 color-change markers an invisible-ink marker and a seek & find lens.
  • Crack the codes and complete the puzzles to solve dozens of mini mysteries!