Series: World of the Iron King's Assassin

Ruby Morvannon, the last Sidhe assassin of the Nocturnes, has survived centuries of bloodshed by following one rule: never hesitate. But when she is commanded to kill Stone—an emerging warrior of the Shadow Court—her instinct falters for the first time. His quiet honour, his fierce protectiveness, and the dangerous magic woven through his blood awaken something she has long buried....