Book 6
"Anomaly Stone, the opposite of a child; a phenomenon"
After peace in Eden, the Flame wants to tell Luisa something. She doesn't understand when accidentally releases it and finds the truth.
Book 2
"Death doesn't come easy for those who want it"
After escaping Mount Weather, Luisa adapts to the change of surviving with Grounders. Clarke tried to help with her evolution as they help bring back their friends by befriending a former enemy.