Chapter Twenty Summary: The Plagiarism Revelation

⚠️ 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

Perez drives from the grammar school to the college to meet archaeologist Paul Rutherford. The campus is quiet as term has ended. Rutherford is grave about George Riley’s death, describing him as one of the brightest people he knew. Perez learns that George and Miles shared a deep, lasting love. Rutherford then reveals a critical detail: George phoned him from Westray on the evening Archie Stout died. During that call, George mentioned a “fraudster” – Professor Tony Johnson – and said he would rather not stay at the Pierowall Hotel because Johnson was there.

Pressed by Perez, Rutherford explains that academic rumours have long suggested Johnson’s breakthrough paper on the story stone runes was not entirely his own work. The ideas, Rutherford believes, were appropriated from Magnus Stout, Archie’s father – an amateur historian with limited formal education but deep expertise in Viking culture. Johnson never credited Magnus or named him as a co-author. George planned to turn this intellectual theft into a children’s book, telling the story from Magnus’s point of view. He intended to send proof copies to influential academics and journalists, potentially creating a scandal that would damage Johnson’s reputation.

Perez realises this provides a strong motive. He speculates that Archie, proud of his father’s legacy and known for a short temper, might have confronted Johnson after a day of drinking, perhaps removing the story stones from the heritage centre as a dramatic gesture. Johnson could have grabbed one of the stones to kill Archie. Rutherford admits he did not mention the phone call earlier because he did not realise its significance. Perez ends the chapter wishing he could discuss the case with Willow, but she remains in Westray – and so does the man he suspects of two murders.

Key Events

Perez meets Paul Rutherford at the college to discuss Tony Johnson.
Rutherford reveals that George Riley phoned him on the evening Archie died and described Johnson as a “fraudster”.
Rutherford discloses the academic rumours: Johnson stole his research on the story stones from Magnus Stout, Archie’s father.
George planned to expose the theft in a children’s book, sending proof copies to influential figures.
Perez speculates that Archie, angry on his father’s behalf, may have confronted Johnson, leading to the first murder.
Rutherford apologises for not mentioning the phone call earlier, explaining he did not think it was relevant.

Character Development

Jimmy Perez: Demonstrates sharp intuition, piecing together the plagiarism motive and envisioning a possible confrontation between Archie and Johnson. He also shows empathy by suggesting Rutherford visit Miles, George’s partner.
Paul Rutherford: Initially appears as a grieving friend, but his failure to disclose the phone call earlier adds complexity. He is genuinely helpful once pressed, yet carries guilt for the oversight.
George Riley (posthumous): Revealed as a mischievous, principled man who loved a mystery and was willing to expose wrongdoing to protect a local hero’s legacy. His relationship with Miles was strong.
Tony Johnson: Now a primary suspect. He is described as a celebrity academic who built his reputation on stolen work. His presence in Westray at the time of both deaths is highly suspicious.
Magnus Stout (posthumous): Archie’s father emerges as a key figure – an uneducated yet brilliant amateur historian who never sought credit for his discoveries. His quiet dignity contrasts with Johnson’s careerism.

Themes, Symbols, or Motifs

Intellectual Theft and Plagiarism: The chapter centres on the theft of Magnus Stout’s research. Johnson’s academic fraud becomes a motive for murder, highlighting how stolen ideas can destroy lives.
Secrecy and Revelation: Characters keep secrets (Rutherford’s withheld phone call, George’s covert plans, Miles’s mysterious past). The chapter shows how concealed truths gradually come to light.
Pride and Legacy: Archie’s pride in his father’s work and his short temper are key to Perez’s theory. George’s desire to set the record straight reveals a concern for historical justice.
Story Stones as Weapons: The stones used to kill both men are themselves objects of contested history, symbolising the conflict over who owns the island’s story.

Why This Chapter Matters

This chapter provides the clearest motive yet for both murders. The revelation that Tony Johnson plagiarised Magnus Stout’s work – and that George Riley planned to expose him – ties the two killings together. Perez’s theory that Archie confronted Johnson and was killed with one of the story stones offers a plausible scenario. The chapter also deepens the theme of academic dishonesty and shows how George’s investigation into Johnson’s past ultimately cost him his life. It shifts suspicion firmly onto Johnson while leaving room for other possibilities.

Study Questions and Answers

1. Why did George Riley call Paul Rutherford on the evening Archie Stout died?
George called Rutherford for a casual gossip, but during the conversation he mentioned that Tony Johnson was in Westray and referred to him as a “fraudster”. George also said he would rather not stay at the Pierowall Hotel because Johnson was there. The call becomes crucial evidence because it shows George’s awareness of Johnson’s plagiarism and his intention to expose it.

2. What did Perez speculate about Archie Stout’s actions on the night of his death?
Perez imagines that Archie, after drinking all day and feeling resentment on his father’s behalf, might have removed the story stones from the heritage centre and demanded a meeting with Johnson. In this scenario, Johnson grabbed one of the stones to kill Archie. This theory connects Archie’s death directly to the plagiarism reveal.

3. Why did Rutherford not mention George’s phone call during his first interview with Perez?
Rutherford explains that at the time he did not think the call was important. It was just a chat while he was cooking supper, and he did not realise the implications of George’s comments about Johnson. He feels guilty for the oversight, which shows how seemingly trivial details can become significant in a murder investigation.