First you need to get a hammer and a spike from a weapon rack in the armory at ( -59, 126, 180 ) /waypoint -59, 126, 180.
Return to Thorn who wants you to escort some captive frogloks in the prison with her back to the entrance of the zone. Each person doing the quest will get a little group of 3 npc captive frogloks. They move forward when you get close to them from behind. They do not draw aggro or seem to get attacked by mobs. They seem to insist on going through the Chamber of Animation. If you try to go the other way, they will just stand around in the Oratorium.
Fight your way to the entrance with them in tow. If you take too long to move they state that they will find their own way and the quest will update anyway. Don't know if this is intended or not.
If you can take a few hits as you go, put on a movement buff and just run straight through all the mobs to the zone exit. The only ones you will have to fight will be the 3 pairs of mobs on the stairs near the entrance because you will outrun all the others. You can then go AFK by the zone entrance, because even though you will leave the frogloks behind they will eventually make their way out.
If you appear to lose the frogloks as you near the zone exit then return to Thorn. If the quest has not completed then when you hail her you must reply that you have lost them. She will give you 3 more, and as you exit the cell the quest will update.