During the quest , your mission is to free 3 proto-drakes, and 9 Brunnhildar prisoners.
Once freed, the proto-drake serves as a vehicle. It has one ability:
It can carry one prisoner in each claw, and one more behind you.
You get the drake to break prisoners free of the ice entombing them, pick them up (at a distance!), and get out of there. Meanwhile, giants in range will be throwing things at you. Your drake will get hurt if it stays too long after attracting attention. Once you get a short distance away from Dun Niffelem, it will automatically fly back to Brunnhildar Village.