Legend

After dispatching the goblins, you find a whopping 2 gold pieces on them. They mentioned something about not letting you in somewhere, so you assume they didn't want you entering the trapdoor in the stone floor near them. The trapdoor is closed, and very locked. The goblins didn't have a key either.

If you happen to have a jar of acid, you may burn off the lock quietly. If not, you'll have to rely on more forceful means. You'll still get it open, but your actions will undoubtedly cause noise and alert whatever may be lurking down there.

Either way you can still turn back and forget about messing around with this altogether.