Infiltrating the Sanctum: The Escape  

I don't know how long you have to free these frogs, but they despawned on me during a fight on the way up

The location for the update is on the south weapon rack in the middle of the room. There is a clickable part on the back side of the rack at the farthest end (west end). This part of the rack will change to a clicky to update the quest.

When you talk to Thorn to advance the quest, the frogloks will start running out of the room and you have to lead them back to the entrance. When you fight mobs, the frogloks will stay a good distance away (no AE issues) and wait for the fight to be over. Sometimes they will take off to the entrance without you and when they reach the entrance you will get an auto-update no matter where you are in the zone. Other times they will run off and "get lost" and despawn. You will then need to go back to the cell and start over. Return to Thorn to advance for your reward of wither Bangflashers or the evac potion.