Despite her personal struggles, Blackthorn agrees to help take care of a troubled young girl who has recently been brought to court, while Grim is sent to the girl's home at Wolf Glen to aid her wealthy father with a strange task--repairing a broken-down house deep in the woods. It doesn't take Grim long to realize that everything in Wolf Glen is not as it seems--the place is full of perilous secrets and deadly lies. . . .

Back at Winterfalls, the evil touch of Blackthorn's sworn enemy reopens old wounds and fuels her long-simmering passion for justice. With danger on two fronts, Blackthorn and Grim are faced with a heartbreaking choice--to stand once again by each other's side or to fight their battles alone.