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Cambridge University Library’s exhibition, Ghost Words: Reading the past, takes a closer look at some of the lost words scraped off parchment and hidden beneath newer text, in objects known as palimpsests. These ghost words, which remained undiscovered for centuries, are being uncovered using a modern digital technique known as spectral imaging.
With this activity, you can create and reveal your own hidden message using this DIY invisible ink! What will your secret message say? And who will get to read it?
