Which reminded me to get around to updating it over at boosterific. Given that I just sent Part 20 off to her, I reeeeeeally shouldn't be only adding parts 9 and 10 to my personal archive. *slaps own wrist*
Old Friends, New Adventures, parts 9 and 10 (Buffy/Doctor Who cross, Ten, Dawn, rated 15).
(Part One, for those interested in catching up or just remembering what the hell was happening, can be found here.)