THe final four
Restoration: Carbon IV
After helping rescue Natalie, a young victim of Excalibur's subversive genetic experiments, former FBI Agent Elizabeth "Liz" Kerry defends the girl as Dr. Rayford's forces fight to get her back. Unhappily teamed with Kevin Rowe, member of the Sterlings and constant thorn in her side, Liz must keep an eye on the goal and work with Carbon to keep Natalie safe. But when her past interferes with the mission, she finds greater danger than she has ever faced from mortal enemies. With her fierce independence torn from her grasp, she must entrust herself to Kevin and work with him to unveil deeper secrets of Excalibur, even a plot to destroy the very fabric of society.
Retaliation: Carbon V
The Sterlings failed to stop Project Excalibur's dispersion of its DNA-altering nanites through the water supply. No longer is anyone safe from infection. While former agent Grace Matthews is charged with holding the remnant of Mathis' followers together, Kevin Rowe fights for the safe return of his fiancée. Faced with mortal loss, his loyalty is put to the ultimate test. After rejecting the Independence Route technology, will Carbon and the Mathis family come through? Is the freedom found in the link worth the cost?
Reformation: Book VI
Recovering from the massacre in Oklahoma, the surviving followers of Mathis struggle to grasp what has happened and what to do next. Grace still leads alongside Thompson and other former Excalibur agents, while Liz grapples with loss. Elise and Shane continue following Carbon's orders and face their greatest trial yet. With genetic modification under public scrutiny, can the group stay safe from Excalibur's assassins and spread their message about the cure?
Reconciliation: Book VII
Lucy Perismo has sacrificed everything for truth. After working for Mathis to develop an aerosol dispersion for the cure, the technology is stolen and she is taken to Excalibur's fortress. Rescued by a group of former Excalibur agents, including the man responsible for her capture, she finds herself flying to Mathis' haven to build a new dispersion and make the cure freely available to all.
Todd Bentley is a changed man. After receiving the cure, he struggles to accept that Samuel Mathis could truly forgive him for a past of mistakes and betrayal. Charged by Carbon to protect Lucy, he finds more than a simple second chance at life.
In Excalibur's final chapter, will true freedom finally come to those in chains?