
Introduction
I'll mark on your map the place where Francesca was kidnapped. You can also go to the Bolgatur fortress to confirm Perenelle's information. As for me, I'm still investigating the meaning of the locket with a hut.

Cunclusion
Ok, so there actually was a group of Norstrian mercenaries, and they did ask suspicious questions in Bolgatur. If we cross match this information with what you were able to find in Huntingwood, I think it's safe to assume those were the same people. On a separate note, I was not able to find out anything about the locket, so it was probably an obscure little group of little interest. Good, now we can only hope they're still in Lanfar. From what you learned, they did not go back to Norstria via the fortress. It's even possible they're in Maliken, or maybe someone there knows where they're currently hiding.