"The courier counts letters."
Translation:Tabellarius epistulas numerat.
The hovertext for "letters" lists "litteras" as a possible answer, but that word wasn't accepted. It's clearer (now) that the kind of letter is a written note to be delivered to others (epistula), but it's confusing at first glance. Both "littera" and "epistula" could be "letter," correct? (reported)