The final action-packed instalment of the Spark trilogy.

Evie is out of options. She must comply with the Affinity Project – obey their rules, play their deadly games, give up Jamie. And her losses keep growing. When she decides to help a small group of Shields trying to affect change, Evie finds herself in the firing line. Counsellor Knox is intent on revealing her secrets and shackling her to the Affinity Project for life. To protect her family, Evie must betray those closest to her. The odds of success – let alone survival – are slim.