Brooklyn Harper’s friends have betrayed her, her heart is broken, and all of humanity is at risk.

After Kirin’s unannounced arrival in Louisiana, Brooklyn finds herself scrambling for a way out of an impossible situation. Kirin is creating the deadly Genesis Cull, and Brooklyn doesn’t know who to turn to for help.

With no other options, she’s forced to trust her nemesis, Juneau Malloy. His support allows the group of Special Omen Operatives to gear up, form a plan of action, and train for the day when they come face-to-face with their worst fear—going to war with their friends.

There is a divide in the once inseparable group of Omens, and their only hope is to put the pieces back together.

Julian Yu Matsumoto agonizes over the difference between right and wrong, love and sacrifice, genocide and revolution. While he struggles with his feelings for Kirin, his moral compass is spinning round and round, his heart is being pulled in different directions, and Julian is desperate to answer questions he never thought he would have to ask.

Is Kirin's Genesis Cull a revolution or genocide?

Could there be another way to save themselves and humanity as they know it?

Will Julian pay the ultimate price for loving a monster?

Their only hope for redemption is—the Legacy Strain.