The Wolf of Helocene — Mark Taylor

Arna's life is dominated by the Laws - a complex calendar of festivals and rites that maintains a fragile peace between races. When her sister fails to return from the city of Moelberg, Arna must defy the Laws in order to find her. But her journey is fraught with danger - the malevolent Kurne are abroad, armies are massing in the south, and the Season of Mist approaches, when all human women must return to their birth place. She soon discovers that the world is changing - the Laws are losing their potency; and a family secret, hidden for decades, suddenly places her at the centre of the turmoil...