The life of Lark Jaansen, hunter in Clan Gennessee, has been shaped by violence and unrest and it defines her future. Well trained and resilient, she realises she has met her match in Simon Leviathan, a strong warrior from a different world. A mysterious war has been waged among the Others. As witches and humans turn against each other, as fae retreat in fear and as vampires rise, Lark and Simon discover that an unseen force is behind it. A single, hungry entity older than recorded history has returned. Finding him is their first hope; surviving him is their last.