Tsorin is the Captain of the Guard in Andra. He's an expert on Goblins and will help your quest.
He will not allow anyone through the MountainFort as the OracleStatue had been stolen from the DenorianVillage. This has caused all sorts of upheaval in the land, and so is unsafe for any adventurer to travel there.
If you can prove that you have authorization to pass through the Fort, Tsorin will let you pass. He will give you an encrypted message which you must deliver to Derig. The message's contents are encrypted, so you cannot read what is said.