Bríg
Bríg pauses her retreat after a few steps, waiting for the other party members to emerge from the darkness, and ready to heal those who went ahead of her should they appear grievously injured.
Spoiler: Action!
Move Action: Move 10' away from the entrance.
Standard Action: Ready an action to heal a party member other than Reiko who emerges from the darkness looking particularly injured with Soothing Rain, for (4d8)[24] HP.