Sephy and Callum return in a novel that finds the protagonists all grown up but the dystopian world they inhabit still casting a shadow on their relationship.

Thirty-four years have passed since Sephy Hadley - a Cross - first met Callum McGregor - a nought. Their love was forbidden, powerful - and deadly.

Life is seemingly very different now for noughts and Crosses - including for Sephy and Callum's families. But old wounds from the past are hard to heal, and when you're playing a game as dangerous as they are, it won't be long before someone gets caught in the crossfire.