oh wow, well remembered! I'd forgotten all about that particular fic! :D
and you're so right re this time of year (ugh), although there are a few fests going on in jan/feb that might potentially interest you? Remus Lupin Fest has just started claiming, and museinabsentia & I run RS Fireside Tales which is all about spooky/uncanny/ghost stories you'd like to be told around a fire.... submissions in Jan, posting in early Feb! Let me know if you're at all interested in that one, people are still welcome to join Fireside Tales!