When you challenge them from the front entrance you soon see three of the black dragoniods exit the fog. One looks to Bastion and extends a scroll to him. When Bastion takes it they step back to the edge of the fog. When Bastion unrolls the scroll he will see a clear written message. "Surrender and you and your friends will be able to leave in peace. DO not surrender and the druid we have will die after watching us kill is friends in front of him. The choice is yours make a wise one."
Avan sees the three that go out to delivery the message scroll but he does notice that those watching the cages seem to stay alert to anything coming outside the cage bars. He will see the female human step up towards the opening. But she does not leave the protection of the fog.
Upon hearing Bastions answer she answers him. The main group can hear a female laugh then simply state. You friend will be returned to you shortly. Then you can go and never return.
As the three who went outside return in she will look to the cage Avan is in and order it unlocked. Avan is pulled out and ordered to strip.
As Avan Moves quickly into Wild shape a blade comes down hitting him hard (Rolled a natural 20) stunning him. Another of the watchers is able to grab him while stunned. He is thrown into a sack and it tied shut. They will wait for you to turn back to your normal form.
The main party waits outside the fog for their friend to appear but it is over four hours now. IF you ask you will hear the female voice once again say that he will be out shortly he is just being a little stubborn right now but no harm is being done to him at the present.
Avan - They will wait you out. Once you revert back to human form the mage will have them untie the sack and tell you once again to strip. Your weapons are not where you left them. A couple of them now have a net in case you try to revert to wild shape again. The mage tells you your friends are waiting for you but you will walk out of here with nothing but yourself.
She laughs. The stuff in your sack are already mine as you will take everything off and walk out of here thus you are not bargaining at all. As far as your companion I will not give him back to you since you attacked my guards. Be glad I am letting you leave alive and in one piece. As far as my plans here and what I wish to accomplish is none of your business. Now strip and go out to your friends.