Homemade invisible ink earns ninja student an A for half an essay
(The Guardian World News)

Professor was so impressed with Eimi Haga´s creativity, he didn´t reveal whole textA Japanese student aced an assignment on ninja culture by making her own invisible ink from soya beans in a stealthy move that impressed her professor.Eimi Haga, a member of Mie University´s ninja club, submitted an essay about the assassins with a message attached instructing the professor to heat it before reading. Continue reading...