Mr Mystery Invisible Ink
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Whether it's solving the murder of Madame MacPhlott's marigolds or thwarting jewel smugglers on the run, Mr. Mystery has 32 pages of cool cases to crack! Includes classic games: Battleship, Jailbreak, Hangman, Top Secret and What Does Mr. Mystery Like? Best of all, the invisible ink pen makes this the perfect gift for super-sleuthers on the go for hours of working out 'whodunnit!'