They'd arrived without warning, striking from the darkness to destroy the protective dome over the colony.
In one day they took everything of worth the colonists of Pluto had struggled to build and claimed it for their own.
Except for the mining settlements.
Through the tunnels, and hiding for cover where they could find it, Cora 'Lawbook' Bloodlaw and her small band of survivors know they can't face this alone.
But will they find the help they need among the settler.