A Free Adventure by Simon Forster
Another freebie, this is one that I ran a few years back during our long Against the Giants campaign (lasted 214 sessions!).
An abandoned monastery lies forgotten in the depths of the mountains. Within lies a sanctum that holds the very first forged blade used to take a life. The monks that dwelt here worshipped it as a deity in its own right, protecting it from would-be thieves and scholars. They have long since passed away, eroded by time and their own isolation.