A Japanese ninja history student who handed in a blank paper was given a top mark after her professor realized her essay was written in invisible ink, the BBC reported 😱. What a neat way to pass on secret spy messages😎.
Next week, we will teach you on IG how to make invisible ink and turn your family into super-secret agents. This easy recipe creates an ink that only those who know the secret will be able to read.
Stick with us on Facebook or Instagram to see the details next week!
Credit: arianka ibarra on Unsplash
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