Chapter Thirty Summary and Analysis – The Killing Stones

⚠️ 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

At dawn, Willow and Jimmy Perez are woken by a phone call. Perez learns that Johnson’s body has been found at the Stones of Stenness, stabbed with a knife. There is no sign of Barbara or their car. Perez is overwhelmed and considers cancelling the Ba’ game, but Willow advises against it because the game is a tribute to Archie and George. Willow arranges to fly to North Ronaldsay on an ambulance flight. She meets Mima, an elderly islander who once helped Nat Wilkinson’s mother. Mima reveals that she witnessed Nat’s father fall into the sea accidentally; Nat tried to save him. She also describes Nat’s severe bullying at school and his suicidal thoughts. The teacher Nat confided in may have been George Riley. Willow senses a tentative connection but cannot yet articulate it.

Key Events

Johnson’s body is discovered at the Stones of Stenness; the murder weapon is a knife.
Barbara Johnson and the car are still missing.
Perez tells Willow he considered cancelling the Ba’ game; she argues against it.
Willow learns that Nat Wilkinson left Westray by ferry the previous day for urgent business.
She hitches a ride to North Ronaldsay with an ambulance flight.
On the island, Mima tells Willow that Nat’s father’s death was an accident and that she witnessed it.
Mima describes the bullying Nat endured at school and his confession that he wanted to kill himself.
The teacher Nat confided in might have been George Riley.
Willow returns to Kirkwall with a vague but promising new idea.

Character Development

Willow takes the initiative to investigate independently, supporting Perez while also following her own leads. She shows empathy toward Mima and Nat.
Jimmy Perez appears vulnerable and overwhelmed, reminiscent of his state after Fran’s death. He struggles to keep the investigation focused.
Mima is revealed as a key witness who has long held the truth about Nat’s father’s death. Her guilt about not intervening earlier adds depth.
Nat Wilkinson is humanised: his childhood trauma, bullying, and the false rumour that he killed his father are clarified by Mima.

Themes, Symbols, or Motifs

Community Gossip and Secrecy: Mima explains that the rumour about Nat killing his father spread through boredom and ignorance. The community knew of abuse but did not act.
Childhood Trauma and Bullying: Nat’s school bullying and suicidal thoughts are central. The theme echoes earlier references to George Riley’s possible role as a teacher.
Isolation and Loyalty: North Ronaldsay’s remoteness mirrors Nat’s isolation. Mima’s past kindness contrasts with the community’s earlier failure to help.
Tradition vs. Investigation: The Ba’ game symbolises communal identity, but Perez sees it as a distraction. Willow’s advice balances respect for tradition with the need for order.

Why This Chapter Matters

This chapter shifts the case dramatically: Johnson’s murder introduces a second victim and removes the primary suspect (Johnson) the police had been tracking. It deepens the mystery of Barbara’s disappearance. The interview with Mima provides the first clear account of Nat Wilkinson’s past, establishing his father’s death as an accident and revealing that Nat may have been a victim of George Riley’s negligence as a teacher. Willow’s emerging hunch sets the stage for the next breakthrough.

Study Questions and Answers

Why does Willow advise Perez not to cancel the Ba’ game?
Willow explains that many people view the Ba’ as a celebration of Archie’s and George’s lives. Cancelling it would alienate Kirkwall residents, who feel a strong sense of pride and tradition, just when Perez needs their cooperation.
How does Mima’s account exonerate Nat of his father’s death?
Mima says she was in her garden that day and clearly saw Nat’s father fall into the sea without Nat pushing him. Nat immediately jumped in to try to save his father, proving his actions were those of a rescuer, not a killer.
What tentative connection does Willow sense after her talk with Mima?
Willow realises that the teacher Nat confided in about the bullying may have been George Riley. This connection between Riley and Nat’s past could explain a motive for Riley’s murder, though she cannot yet prove it.