Reading Between the Lines…Literally!

As kids, I think we are all fascinated with invisible ink. It just seems like such a cool idea: being able to write something down and only have it seen by the person intended. Maybe it’s the “secret agent” in all of us. Of course, I tried many a version of the super secret ink (some garnered from stores, others from the back of a cereal box) but was never able to find one that I thought actually worked. Regardless of whether or not I ever got to use it, the history of invisible ink is a fasc...