A high-concept, fantastical espionage novel set in a world where dreams are the ultimate form of political intelligence. Livia is a dreamstrider. She can inhabit a subject's body while they are sleeping and, for a short time, move around in their skin. She uses her talent to work as a spy for the Barstadt Empire. But her partner, Brandt, has lately become distant, and when Marez comes to join their team from a neighboring kingdom, he offers Livia the option of a life she had never dared to imagine. Livia knows of no other dreamstriders who have survived the pull of Nightmare. So only she understands the stakes when a plot against the Empire emerges that threatens to consume both the dreaming world and the waking one with misery and rage.