Ch 04: Pg 03: Council of Elders

Sameth on Aug. 10, 2015

It is very possible that the purple dragon is Dreg and Wirk's mother. I'm not sure as it's irrelevant to the story, but given that they were both made chiefs, it makes sense that they have a family member who is an elder or whatever.
The way this works is that chief is in charge of the individual dragon issues and day-to-day issues as well as being the liaisonto the bipeds and the council of elders decides things (with the help of the chief) that have to do with the entire tribe and long-term issues. I think it's something akin to cities that have mayors and city councils.