Nimona Weston has fallen into a game from which there's no agreeable way out. The stakes have risen, putting everyone she loves at risk. As she uncovers old secrets, the dark magic resting in the foundations of Inara begin to stir. She's running out of time. If Nim can't find a way to stop the queen, the Trust will rise like the river of power beneath the kingdom, devouring everything in its path.