The Darkened Crown - The Last Dragon Skin Chronicles, #4

The kingdom of Ilia is in darkness, and a new queen rules with fear. She won't step down without a fight, and it is a fight the king and his allies can't win, especially now they have lost the dragons. They have no option but to run. But where can they run, when they don't know who to trust? Ana destroys all those who oppose the new crown or turns them into shadow soldiers; and no one is who they appear to be.
They must end the nightmare that Ilia has become. That is difficult when they have no actual plan, a girl who can't shine, and darkness lurks in every shadow?