There is a gentle cough from off to your right. But you see nothing until the goblin shaman steps from the cover of a tree about 20 feet away. A moment later her worg appears beside her.
"You rather spoiled my plans for a dramatic entrance," she announces calmly. She glances around the group, as if checking each of the faces. She whistles softly. From each side of her her companions emerge mounted on their worgs, although this time between you manage to hear one and see the other before they step completely from cover.
"We are glad that you came. Time is against us, and we must be leaving soon. But first I must show you something."
With that she turns and strides off towards the ruins of the fort above you. Her worg pauses for a moment, watching you. Then at some sound you can't hear, it turns and pads after the shaman. The two other goblins, their spears held lightly at their sides remain where there are until you move. If you tarry they begin gesturing with their spears for you to get moving. Once you are one your way they fall into position, one about 20 feet to your right and the other about 20 feet behind you.
The shaman is waiting for you about 10 yards in front of the opening that once was the gatehouse of the fort.