anticitizen101: That still doesn't tell me whose side are you on. You can cross to the "other side" on both Roche/Iorveth sides of the chapter.
hikki: I'm not that far yet - I'm still with king Hanselt and Dethmold
I just picked up the dwarf and about to venture thru the fog
That means you're on the Roche side. That's what I asked in the first place.
Once you go through to the other side, you can find two silver swords.
One is in a crypt north of Vergen, named Fate, and it is the weaker of the two.
The 2nd one is in the tunnels that you'll take to meet Zoltan, who is supposed to bring you the spear used to kill Sabrina. This sword is possibly the strongest in chapter 2, and it is named Blood Sword.