Cairn (PROSE: The Lost Boy) was a French teacher at Park Vale school. Maria Jackson was supposed to be having double French class with him when she attempted to go to see Luke Smith. Only Clyde Langer was able to, as he hadn't been caught. (TV: The Lost Boy) Behind the scenes Edit Cairn was only given a name in the novelisation and remained nameless in the televised version. Retrieved from "https://tardis.fandom.com/wiki/Cairn?oldid=2642822" Categories: 21st century individuals Park Vale teachers Human French teachers + cat Cancel Save Community content is available under CC-BY-SA unless otherwise noted.