Chapter summaries With a Vengeance Riley Sager

Chapter Sixteen Summary and Analysis – With a Vengeance

⚠️ 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

Still aboard the Phoenix, Anna watches as Seamus and Dante carry the tablecloth-covered body of Judd Dodge from the lounge to an empty room in the thirteenth car. They replace the cloth with a sheet, which feels more dignified. Anna dismisses any ceremony, saying she regrets only that Judd did not suffer more. She returns to her own compartment and lies down, exhausted. Seamus joins her, and they lie side by side in the dark.

Anna confesses they have failed. Seamus agrees. The memory of their first meeting surfaces: at Aunt Retta’s funeral, Seamus approached Anna, explaining that her aunt had written to him. He revealed that he lost his brother, Sean Callahan, in the same train explosion that killed Anna’s brother. In the trunk of his car were six boxes of evidence Aunt Retta had gathered—proof that several people, including Sal and Edith, Herb Pulaski, and Judd Dodge, had conspired to cause the explosion. After reviewing the evidence, Anna and Seamus agreed that vengeance was necessary. Anna ultimately decided that death was too easy; she wanted justice through exposure. Now that Judd has been murdered, that plan is impossible.

Anna and Seamus debate who might have killed Judd. Anna wonders if Reggie Davis is lying about boarding the wrong train, but Seamus suspects Dante Wentworth might be a plant sent by his father. Anna admits that she and Dante once slept together—a single night born of shared grief—and that Seamus still seems jealous. Anna names Jack Lapsford as her prime suspect, noting his desperation and opportunity. Seamus asks why any of the conspirators would kill one of their own. Anna answers that the dead cannot talk; the killer may be trying to eliminate those who know the most. They decide to monitor everyone for the remainder of the trip, checking on them hourly. Anna realizes the irony: to destroy their enemies, they must first protect them. She concludes that finding the poison will lead them to the killer, because the poison was likely discovered aboard the train rather than brought premeditated.

Key Events

  • Judd Dodge’s body is moved to a bed and covered with a sheet; Anna expresses no remorse.
  • Anna and Seamus lie together in her compartment and discuss their failed plan.
  • A flashback reveals how Anna and Seamus first met at Aunt Retta’s funeral, where Seamus showed her six boxes of evidence proving a conspiracy.
  • Anna recalls that she and Seamus initially debated killing all the conspirators but settled on seeking justice through exposure.
  • The two debate suspects: Reggie Davis (maybe lying about his reason for being on the train), Dante Wentworth (possibly a plant from his father), and Jack Lapsford (most vocal and suspicious).
  • Anna admits to a previous one-night stand with Dante, which Seamus still resents.
  • Anna theorizes that the killer is eliminating fellow conspirators to prevent them from confessing.
  • They decide to monitor everyone and search for the poison, believing the killer found it on the train.

Character Development

Anna is revealed as deeply pragmatic and hardened by grief. Her cold remark about Judd’s suffering shows her desire for vengeance has not waned, even as she accepts that their original plan has failed. Her willingness to reexamine her trust in Dante and her suspicion of Jack demonstrate a sharp, analytical mind under pressure.

Seamus is shown to be more emotionally sensitive than his rough exterior suggests. His lingering jealousy over Anna’s night with Dante indicates a personal attachment that complicates their partnership. He remains loyal and physically supportive, but his focus is equally on protecting Anna and on the mission.

Dante Wentworth is characterized as an ambiguous figure. Anna believes he may be trying to help, yet Seamus sees him as a potential threat sent by his father. The revelation of their past intimacy adds a layer of personal complexity.

Jack Lapsford emerges as a primary suspect, described as vocal, desperate, and opportunistic—though the evidence against him is only circumstantial at this point.

Themes, Symbols, or Motifs

Vengeance vs. Justice. Anna originally chose justice (exposure and punishment) over outright murder, but Judd’s death forces her to accept that vengeance may now take a different form. The line between moral retribution and cold-blooded murder blurs.

Trust and Suspicion. The chapter revolves around trust: Anna and Seamus must now suspect everyone, including each other’s judgment. Dante’s possible duplicity and Seamus’s jealousy create internal fractures.

Poison as a Motif. The unidentified poison represents both the hidden danger among the conspirators and the corrosive nature of secrets. Finding the poison becomes the key to unmasking the killer.

Why This Chapter Matters

This chapter is a turning point. The original scheme—to publicly expose the conspirators—has been derailed by Judd’s murder. Anna and Seamus shift from hunters to protectors, forced to guard the very people they planned to destroy. The flashback to their first meeting provides crucial backstory about the conspiracy and cements the depth of their shared mission. The introduction of a killer among the group raises the stakes from revenge to survival. Anna’s realization that the poison was likely found on the train tightens the mystery and sets up the next phase of the investigation.

Study Questions and Answers

1. Why does Anna say the plan to bring the conspirators to justice is now impossible?

Because Judd Dodge is dead. Their scheme relied on gathering evidence and exposing all the conspirators alive. With one of them murdered, they can no longer ensure that every guilty party faces legal consequences. The killer’s act has permanently altered the outcome.

2. How does the flashback to Anna and Seamus’s first meeting explain their motivation for revenge?

At Aunt Retta’s funeral, Seamus gave Anna six boxes of evidence proving that her father was framed and that specific people (including Judd, Herb, Sal, and Edith) caused the train explosion that killed both their brothers. This revelation fuels their shared desire for vengeance.

3. What is the irony Anna notes about having to protect the remaining conspirators?

Anna points out that in order to destroy their enemies—by keeping them alive so they can be brought to justice—they must first protect them from the killer. They now have to guard the very people they came to punish.