Chapter summaries With a Vengeance Riley Sager

Chapter Forty‑Seven Summary: The Killer Unmasked

⚠️ Spoiler Warning: This guide contains detailed spoilers for the entire novel. Proceed only if you've finished reading or are comfortable knowing the plot.

Summary

Just before dawn, the killer glides silently through Car 12, knowing that any sound would alert Anna and send her into battle mode. Their target is Jack Lapsford, the last living conspirator on the island. After Lapsford is dead, only Kenneth Wentworth will remain, and the killer intends to leave Wentworth for the courts as a concession to Anna. When the killer cracks open Lapsford’s door, the chair by the window is occupied—not by Lapsford, but by Anna. She smiles and greets the killer by name: “Hello, Agent Davis. Feeling better, I see.” The confrontation that Anna has been anticipating has finally begun.

Key Events

  • The killer waits until nearly 7 a.m. to move through Car 12, careful to remain silent.
  • They reflect that secrecy is vital because Anna will fight back once she learns of the next murder.
  • The killer identifies Jack Lapsford as the remaining conspirator.
  • They plan to let Kenneth Wentworth face trial rather than kill him, hoping the gesture will please Anna.
  • The killer quietly opens Lapsford’s door and finds Anna sitting in the chair instead.
  • Anna greets the killer by name—Agent Davis—and reveals she has been waiting for him.

Character Development

  • Agent Davis: Until this moment, Davis was a trusted FBI agent helping Anna investigate the plot. The chapter reveals him as the killer, rewriting everything the reader thought they knew. His careful, methodical approach to murder and his internal focus on Anna’s reaction show a calculated and deeply personal mission.
  • Anna: Although she does not speak much in this chapter, her presence in Lapsford’s room at dawn demonstrates that she has been a step ahead of Davis. Her calm greeting signals that she has deduced the truth and is ready to confront the person who has been hunting her allies.
  • Jack Lapsford and Kenneth Wentworth: Both remain offstage but are central to the killer’s motive. Lapsford is marked for death; Wentworth is spared for the legal system.

Themes, Symbols, or Motifs

  • The Mask of Authority: Davis’s role as an FBI agent allowed him to operate without suspicion. The chapter explores how professional trust can be exploited for hidden goals.
  • The Hunt and the Hunted: The killer stalks through the quiet train car, believing they are the predator. Yet Anna’s trap flips the dynamic, making the hunter the one caught.
  • Justice vs. Vengeance: The killer’s decision to leave Wentworth for the courts suggests a private code, but the fact they have already murdered others undermines any claim to legal justice. Anna’s patient waiting implies she has her own definition of justice.

Why This Chapter Matters

This chapter delivers the central whodunit reveal of the novel: Agent Davis is the killer. It also sets up the final confrontation between Anna and Davis, raising the stakes for the remaining pages. The reversal of power—Anna waiting instead of being ambushed—indicates that she has been planning her countermove. The chapter also clarifies the killer’s motive: eliminating the conspirators while offering Wentworth as a symbolic victory for Anna.

Study Questions and Answers

  1. How does the killer’s internal reasoning justify leaving Kenneth Wentworth alive?
    The killer believes that letting the courts decide Wentworth’s fate will give Anna “at least one victory,” showing that they are not simply a cold‑blooded murderer but someone who seeks Anna’s approval or wants to impose a twisted sense of fairness.

  2. What does Anna’s greeting (“Hello, Agent Davis. Feeling better, I see.”) reveal about her knowledge?
    Anna’s use of Davis’s name and her reference to his recent illness indicate she has been monitoring him, guessed his true identity, and possibly staged the trap. It confirms she is not a passive victim.

  3. Why does the killer consider silence “extremely important” even at 7 a.m.?
    The killer knows that if Anna learns of the murder too early, she will “go into battle mode” and fight back. Silence is a tactical choice to delay her reaction until the killer has completed the mission.

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