In terms of outside resources they also have:
Meyanda, who has been levelled up a couple of times and is currently guarding the Dusklight's escape pod for them whilst they ascend the tower. Although they have no direct means of contact for her.
Longdreamer, who can presumably communicate with the PCs whilst they are imprisoned as it is implied that it can try and communicate with Nargin also.
Three Azers who are currently busy looting what they need from the tower before departing for Torch. They would have seen the PCs being dragged through and been pretending to be busy.
