Melissa & Doug On the Go Secret Decoder Case of the Slippery Flippers

You can crack codes, uncover hidden clues, reveal secret messages, and be a super sleuth with this 18-page activity book. Young detectives use the included magic-reveal pen and seek and find lens to uncover case-busting clues and solve the mystery. Everything stores neatly within--perfect for detectives on the go. 7+ years.

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