Westala and Villtin are the eponymous heroes of The Tale of Westala and Villtin, a tongue-in-cheek sword and sorcery story first serialised on the Usenet newsgroup alt.fan.pratchett. Based on the now stereotypical pairing of a big, strong warrior and a small, sly thief first established by Fritz Leiber's classic stories of Fafhrd and the Gray Mouser, Westala and Villtin are mercenaries of dubious morality but a strong code of honour. The original Tale has been collated, edited and put on the web by Elin Rosén and can be found - with extensive annotations - at The Tale of Westala and Villtin.