What's the first Due South fic you read?

Mine was Heatwave by seperis! I'd watched the show as a young child and forgot what it was called until reading this fic by my favourite Merlin (BBC) author. I promptly bought the DVDs and fell down the dS fandom rabbit hole...

Heatwave is a short Fraser/Kowalski fic about the tables being turned, weather-wise: both Rays braved the freezing cold Northwest Territories, but how does Fraser deal with a Chicago summer? Especially in all that red serge?