OxfordAQA A Level English Literature (9675): Unit 3 Elements of Crime and Mystery – Study Guide

Crime and mystery stories invite the reader to join a puzzle. Someone has done something wrong, information is held back, and the reader is encouraged to guess. Unit 3 of OxfordAQA International A Level English Literature treats crime and mystery as a genre in which you study how writers build suspense, shape sympathy and handle questions of guilt and justice. This guide teaches the genre’s building blocks and the writing skills needed; your own specification names the set texts and the exam format.

Where this fits in the specification

OxfordAQA International AS and A Level English Literature (9675) organises texts around literary genres or connecting ideas. The first two units, Aspects of Dramatic Tragedy and Place in Literary Texts, form the International AS. Unit 3 starts the second year with the genre of crime and mystery, and it asks you to read your set texts through that lens. Check your specification for the type and number of texts and for how questions are framed, but expect to be asked about the genre’s elements as they appear in particular texts, not just about plot.

How is Unit 3 assessed?

The OxfordAQA International AS and A-level English Literature specification (9675, Version 5.3) sets Unit 3 as an A-level (A2) written exam:

Feature	Unit 3
Time	2 hours
Marks	50: two essay questions, 25 marks each
Weighting	30% of the International A-level
Books	Closed book
Texts	Two texts chosen from the set list, one essay on each
Assessment objectives	AO1, AO2 and AO3, weighted equally in every question

Which texts can you study? The set list is: Shakespeare, Macbeth; Coleridge, The Rime of the Ancient Mariner; Browning, selected poems (‘The Laboratory’, ‘My Last Duchess’, ‘Porphyria’s Lover’, ‘The Patriot’, ‘The Pied Piper of Hamelin’, ‘The Confessional’, ‘Time’s Revenges’, ‘Count Gismond’); Dickens, Oliver Twist; Poe, collected stories (‘The Murders in the Rue Morgue’, ‘The Man of the Crowd’, ‘The Pit and the Pendulum’, ‘The Black Cat’, ‘The Tell-Tale Heart’, ‘The Purloined Letter’, ‘The Fall of the House of Usher’); Stevenson, collected stories (Dr Jekyll and Mr Hyde, ‘The Body Snatcher’, ‘Markheim’, ‘A Lodging for the Night’); Christie, The Murder of Roger Ackroyd; Qiu Xiaolong, Death of a Red Heroine; and Atkinson, When Will There Be Good News?

Eight or nine texts? The specification’s introduction to the unit says “a choice of any two texts from eight”, but the table beneath it prints the nine texts listed above. Do not rely on either number: confirm your centre’s two texts against the current specification and the question paper.

The specification’s own list of elements to explore includes the sense of mystery to be unravelled; settings for criminal action; the nature of crimes, criminals and motives; detectives and detection; the investigation; moral purpose and the restoration of order; guilt, remorse and confession; victims and suffering; punishment, justice and the legal system; structure; language; crime writing as social comment; and how crime stories affect readers.

What makes a text crime or mystery fiction?

The genre is wide, and a text may be a classic puzzle, a thriller, a psychological study of a criminal or a story that questions the law itself. Useful elements to look for are listed below.

Element	What to consider
The crime	What is done, by whom, and how is it first revealed?
The investigator	Amateur, police, private; what skills and flaws do they have?
Suspects	How are they presented, and how does the writer encourage suspicion?
Clues and red herrings	What is shown, what is withheld, what misleads?
Setting	Closed communities, cities, country houses; how place affects tension
Narrative method	Who tells the story and how reliable they are
Resolution	Is order restored, and is justice complete?

A crucial point is that elements are conventions: writers may follow them to satisfy readers or break them to surprise or challenge. Always ask what the writer gains by following or departing from the expected pattern.

Narrative structure and suspense

Crime fiction often has two stories running together: the crime that happened in the past and the investigation that happens in the present. The writer controls the order in which information reaches the reader. Techniques include:

• Delayed revelation: withholding the culprit’s identity or the key fact.
• Cliffhangers and chapter endings that draw the reader on.
• Dramatic irony, where the reader knows more than a character, which creates tension rather than puzzle.
• Foreshadowing and misdirection.
• Pacing: slowing down for description or accelerating for action.

When you write about structure, link the technique to its effect on the reader, for example how a late revelation forces a re-reading of earlier scenes.

The detective and the criminal

Detectives are often presented as unusually perceptive, logical or morally driven, and they can act as a reader’s guide through the text. Consider whether the investigator is reliable, whether they stand outside society or belong to it, and whether the text questions their methods. Criminals may be presented as monstrous, as victims of circumstance or as figures who are uncomfortably close to ordinary people. Look at how the writer shapes your sympathy: the same act can feel shocking or understandable depending on voice and viewpoint.

Setting and atmosphere

Setting is not just a backdrop. A fog-bound city, an isolated house or a small village each creates a different sense of threat and of who might be a suspect. Closed settings limit the pool of suspects and increase tension; busy cities suggest anonymity and moral decay. Consider how weather, light and description reflect or contrast with the action.

Justice, morality and society

The genre often poses questions about right and wrong. Does the text end with a clear restoration of order, or does it leave doubt? Is the law presented as fair, or are the poor, women or outsiders treated differently? These questions let you connect texts to their contexts.

A little history helps if used carefully. Detective fiction is often traced to Edgar Allan Poe’s “The Murders in the Rue Morgue” of 1841. Arthur Conan Doyle’s first Sherlock Holmes story appeared in 1887. Wilkie Collins’s The Moonstone was published in 1868, and Agatha Christie’s The Murder of Roger Ackroyd in 1926. You do not need to list dates in an answer; the value of this background is to show that the genre grew alongside the rise of professional policing, city life and public interest in science and reasoning, and that later writers adapted its conventions. Only use context that helps you explain what a text does.

Writing about the genre

A method for a genre question

1. Identify the element the question concerns, such as suspense, the detective or setting.
2. Locate it in specific moments of your text.
3. Analyse the writer’s methods: language, structure, voice and form.
4. Explain the effect on the reader and the meaning of the text.
5. Connect to the genre, saying whether the text conforms to or challenges expectations, and, where required, to other texts.

A short worked example

Take an invented question: “How do writers use setting to create tension?” A strong response might begin: “In crime writing, setting turns ordinary space into a source of threat, because the reader is asked to look for danger in details.” It would then discuss one moment from a text, for instance a description of a house in which all the doors and windows are mentioned in turn, showing how the repetition makes the building seem enclosed and every character a possible suspect. It would then link to another text where the setting is open and public, arguing that tension arises there through anonymity rather than confinement. This uses a claim, an example, a technique, an effect and a link to a second text, without relying on a quotation from any particular book.

Do you need to compare texts in Unit 3?

No. Each of the two Unit 3 essays is on one of your two texts, so there is no comparative question. Wider reading in the genre still helps AO1 (understanding of genre and different interpretations): a brief, relevant reference to how another crime text handles the same element can sharpen a point, but the essay must stay focused on the text the question names.

Common mistakes

• Summarising the plot and revealing the solution without analysing method.
• Listing genre conventions without evidence from the text.
• Assuming that every crime text ends with justice.
• Treating context as dates and facts that are not linked to the writing.
• Ignoring differences between forms, such as the way drama must show information on stage while prose can use a narrator.
• Overlooking the reader’s role in the puzzle.

Exam technique

Use the terms in the question in your opening sentence. Keep your quotations short and accurate, and always follow them with explanation. Plan your argument so that it develops, with a clear conclusion that answers the question. Leave time to proofread for clear expression.

Frequently asked questions

Can I take my texts into the Unit 3 exam? No. Unit 3 is closed book, so learn short, flexible quotations for each major genre element.

How long should I spend on each essay? About an hour each: the paper lasts 2 hours and each essay carries 25 marks.

Is Unit 3 part of the International AS? No. Units 1 and 2 make up the International AS; Unit 3 and Unit 4 are taken for the full International A-level.

Check your understanding

1. Name three elements of crime and mystery fiction. (For example the crime, the investigator and the clues or red herrings.)
2. What is a red herring? (A misleading clue or suspect that diverts attention.)
3. What is dramatic irony and how does it create tension? (The reader knows more than a character, so we watch events with anticipation.)
4. Why is setting more than a backdrop? (It shapes mood, the pool of suspects and the sense of threat.)
5. Give one way a writer might challenge genre conventions. (For example leaving justice incomplete or presenting a detective as unreliable.)
6. Why is it useful to know the history of detective fiction? (It explains how the genre developed alongside policing and public interest in reasoning, and why writers adapt conventions.)
7. How many texts does each Unit 3 essay cover? (One: you write one essay on each of your two texts.)
8. What should come after every quotation? (Analysis of its method and effect.)