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Nancy Drew Used To Be Way More Ballsy Than The Girl Sleuth You Know

The Story Of Nancy Drew, Once Far More Ballsy Than The Girl Sleuth You Know

To write an invisible message, dip a toothpick or any other sharp object in lemon, milk, white wine, vinegar, apple juice or orange juice and write on the paper. Let it dry completely. To see the message, just hold it in front of a light bulb or candle flame (not too close). The heat of the bulb will make the message appear in brown color. Read more at Buzzle: http://www.buzzle.com/articles/spy-gadgets-for-kids.html