Chapter 24 Summary: The Traitor Revealed and the Black Mission

Warning: This chapter summary contains spoilers for Leave Me Behind up to Chapter 24.

Summary

After a week of routine exercises and mission briefings, Nell reunites with Bradshaw (Bones) only to find him changed—exhausted and hollow. During a tense Black-level mission briefing, Sergeant Eren reveals that the elite unit Hades has been compromised and is missing. A new enemy calling themselves the Ghosts is behind the attacks. More shockingly, a traitor exists within their own unit: someone used a black bullet—a signature of the assassin Riøt—to target Bones during Abrahm’s death, and later poisoned Bones during training. To protect Bones, Eren assigns Nell to act as his double, dressing identically and staying at his side throughout the operation. The unit will learn of this plan only when they are on the ground. Nell grapples with her past under Jenkins, a commander who executed traitors without orders, and the terrifying possibility that someone she trusts wants Bones dead.

Key Events

Nell overhears whispers that Bones’s deputy is not attending his special training, sparking her unease.
Eren reveals the mission is Level Black—the highest threat level—and that Hades unit has been missing for six months.
The enemy group is identified as “The Ghosts.”
Eren discloses that Abrahm was killed by a black bullet intended for Bones.
Bones was poisoned during a training exercise; a needle mark was found on his arm.
Nell is ordered to act as Bones’s double, wearing identical gear and staying physically close to confuse the enemy.
Bones protests the plan, wanting Ian to take the role instead, but Eren insists the decision is out of his hands.
Eren admits he personally investigated Nell’s record and trusts her enough to share the traitor’s existence, but she remains under suspicion.
Nell questions what they will do when the traitor is caught; Eren says they will be arrested, but Nell recalls Jenkins’s brutal methods of immediate execution.
Bones asks Nell directly if she fired the black bullet; before she can answer, he apologizes and leaves, still uncertain.
The chapter ends with Nell thinking of rats forgetting that snakes hide in bird nests.

Character Development

Nell (Bunny) – Her loyalty is tested as she learns of the traitor. She struggles with her past under Jenkins, who taught her to kill traitors without orders. This creates an inner conflict between following Eren’s lawful approach and her trained ruthlessness. She also feels the weight of being Bones’s living shield.

Bradshaw (Bones) – Once a calm and lethal soldier, he appears hollow, exhausted, and distrustful. His physical and emotional distance suggests the poisoning and betrayal have shattered his trust in his comrades. He cannot even look at Nell without suspicion.

Eren – The sergeant becomes cold and distant from his team. He is torn between protecting his brother and following orders from higher command. His decision to use Nell as a double shows he values her skills but does not fully trust anyone else.

Jefferson, Pete, Harrison, Ian – The unit is stunned by the news of Hades’s disappearance and the Black-level mission. Ian’s uncertain glance at Nell reveals the team’s latent distrust of the newcomer.

Themes, Symbols, or Motifs

Betrayal and Paranoia – The central theme is a traitor within a close-knit unit. Everyone becomes a suspect, even Nell. The black bullet and poisoning symbolize the invisible enemy working from inside.

Identity and Disguise – Nell being forced to become Bones’s double blurs their identities. This motif questions whether the mission requires soldiers to sacrifice their individuality to survive.

The Ghosts vs. Dark Forces – The Ghosts represent an unknown, ruthless opponent. Their ability to compromise Hades and plant a mole suggests a network more sophisticated than any previous enemy.

Snakes and Rats – Nell’s final thought about snakes hiding in bird nests implies that the traitor (rat) may not be the only hidden threat—that she herself may be a snake to the rat. This echoes her internalized ruthlessness.

Why This Chapter Matters

This chapter is a turning point. It transitions the story from training and interpersonal tension into a high-stakes combat mission with life-or-death consequences. The revelation of a traitor reshapes every character dynamic: trust is fractured, Nell’s role shifts from sniper to decoy, and Bones becomes a target who cannot trust his own squad. The introduction of the Ghosts as antagonists raises the stakes for the entire series. Finally, Nell’s dark past with Jenkins surfaces, hinting at a moral code that may clash with Eren’s orders.

Study Questions

Why does Eren choose Nell to be Bones’s double instead of another soldier like Ian? Eren personally investigated Nell’s service record and concluded she has never betrayed her unit. While he still suspects her, he judges her loyalty enough to trust her with this dangerous task. The choice also keeps the plan hidden from the rest of the team.
What clues earlier in the novel point to the existence of a traitor within the unit? The attack that killed Abrahm used a black bullet clearly intended for Bones, not a random shot. Later, Bones was poisoned during a training exercise while surrounded by teammates. Both incidents were premeditated and required inside knowledge of the unit’s movements.
How does Nell’s history with Jenkins affect her reaction to learning about the traitor? Jenkins executed traitors on the spot without orders and left no bodies. Nell is haunted by that memory and admits she can imagine many situations where immediate execution might be necessary. This creates a conflict between her ingrained habits and her duty to follow Eren’s command.