Colette in Mighty Duck Inn in Glenfort Village
<NAME>, this is bad. Those enchanted lock-picks you found are showing up all over the valley now. From Urgresh to the Ebian, caravans are being robbed without a trace, guard posts are being emptied of supplies - it's a mess. You need to eliminate the source - those Goblin Soothsayers! Their magic is enchanting these picks, so you need to clear them out before this gets any worse.
Slay 9 Goblin Soothsayers in the Urgresh Borderlands: 0/9
You got nine of them, then? Alright, that should be enough to slow things down a bit. I don't imagine this will be the last we've seen of these enchanted thieving tools, but for now things should hopefully return to normal.