Jonathan cant seem to open the lock.
when Galen says, "to who knows where" Moa says something in goblin and Glem translates:
"I know where he went. He went with the rest of our kin, They going to the stronghold. Once they get there, they will stay there for a long time, until a new threat has been discovered, it will be a while for that, so you have time. But you wont be able to take the fortress with the numbers u have here."