Invisible Ink

Roll the die, put on the glasses and whip out the drawing pen. So far, so easy. What makes it difficult, though, is that the double agent can't really make out the drawing though the rose-colored glasses. But those who are guessing sometimes aren't necessarily better off. The die roll determines who has to put on his glasses and consequently can only slightly make out the invisible ink. And watch out! Often enough, there is a forbidden word that you'd better not name.