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Unlock the mystery and embark on thrilling adventures with the Secret Decoder Book! This interactive spy activity book features 18 pages of intriguing codes to crack and whodunits to solve. Equipped with a decoder wheel conveniently bound right into the book, children can uncover hidden messages and unravel secrets with each turn of the wheel. Perfect for young detectives ages 7 and older, this on-the-go decoder book comes with a color-changer marker to enhance the excitement of cracking codes.
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🇺🇸 Ship from USA · On Agora since 2026
$9.95