"Ah!" The connection to varnish works -- Tarantulas is still a Cybertronian at spark, after all, and paint and varnish are an important part of the culture. "So the 'varnish' locks the pencil markings into place and stops them from smearing?" He frowns again at the paper. "Won't the varnish eventually cause the organic compounds making up the paper to deteriorate, though? What's the average lifespan for this medium?"