Twenty-two year old Johanna Cochrin has spent the past six years in self-imposed silence. After witnessing her brother's murder, she vowed to take his secret to the grave - even if that meant living the rest of her life as a prisoner in a remote government compound. But when she is kidnapped from that compound, Johanna finds her silence difficult to maintain. With the ruthless dictator of a fragile government plotting to sacrifice her to a time-altering Device, she is forced to trust people she has never met, share secrets she never meant to share, and come to terms with her own mortality - all while trying to save the world.