To get extra equipment wait until you have only one place left in your team, then tell the member of your team named Brenna that the mission is too dangerous. She will then give you some extra items.

When you take the bridge out of gwernia go left onto the beach and then go right when you see a path leading upwards.



Up there there is a goblin camp and the game will take a short intermission to make a journal entry.



Then you will see a chest with a trap on it if you can dissarm it then you will now wield the chaos sword.



This is a very powerful sword and it poisons but requires 25 strength to wield.