“I do not tell lies.”
Siobhan, reading aloud from Christopher's book, Part One (p. 4)
The first thing the audience learns about Christopher's mind is spoken by someone else. Siobhan reads the flat, absolute statement while Christopher stays silent, looking up at the policeman, so the claim is framed as writing, something he has made. The line sets up the play's central irony: the boy who cannot lie is surrounded by adults who do, and the rest of the play tests what honesty costs. The book also insists this is not goodness but inability, “It is because I can't tell lies”, which refuses the audience an easy, sentimental view of him.
“This is good, Christopher. It's quite exciting. I like the details.”
Siobhan, commenting on the book as she reads it, Part One (p. 4)
In the middle of reading, Siobhan steps out of Christopher's words and speaks as herself, a teacher responding to a pupil's writing. Stephens establishes at once that we are watching a story being told and received, not simply happening. Her praise of the details matters because the staging is built on them: moments later a policeman enters with the leaf on his shoe that the book has just described, as if the writing summons the scene. The line also shows Siobhan's warmth, and her role as Christopher's first audience.
“It's a bloody dog, Christopher, a bloody dog.”
Ed, just after the police have let Christopher go, Part One (p. 12)
Ed's repetition and his swearing show a man at the end of his patience, and to a first-time audience it sounds like ordinary parental exasperation. On a second viewing it sounds different: Ed killed Wellington, so his insistence that the dog does not matter is also self-protection. Christopher's reply, that he thinks dogs are important too, takes the words literally and morally at once. The gap between what Ed says and what he knows is the play's first dramatic irony, though the audience cannot see it yet.
“I don't always do what I'm told.”
Christopher, to Siobhan, Part One (p. 14)
A short, plain declarative that overturns any idea of Christopher as simply obedient or passive. He goes on to explain that instructions are usually confusing, since people say “Be quiet” without saying how long for, so his disobedience grows out of logic rather than rebellion. The line sets up everything he does next: he investigates against Ed's orders and later travels to London alone. It also prepares a moment that pays off in Part Two, when Judy tells him to be quiet and he asks her how long she needs him to be quiet for.
“It doesn't have a proper ending.”
Christopher, to Siobhan, Part One (p. 26)
After Ed forbids the investigation, Christopher tells Siobhan that his book is finished but unsatisfying, because the murderer is still at large. The line is metatheatrical: a character complains about the shape of the story we are watching. Stephens then gives it an ending Christopher did not plan, the letters and Ed's guilt. Look ahead to the final scene, which ends on a question rather than a neat resolution, and ask whether the play ever gives Christopher, or its audience, a proper ending.
“I love you very much, Christopher. Don't ever forget that.”
Ed, after hitting Christopher, Part One (p. 36)
Ed's declaration comes minutes after he has hit his son on the side of the head, and the imperative sounds almost like a plea. Stephens makes the moment public, since the stage direction has everybody else on stage watching what Ed says, so the audience is asked to weigh love against violence. Christopher's only answer is to ask where his book is, which shows how differently the two of them measure what has happened. The fan of touching fingers that follows is the play's image of how love can reach Christopher: on his terms, not his father's.
“I was not a very good mother”
Judy, in one of her letters, Part One (p. 44)
Judy's letter is spoken aloud while Christopher builds his train set, and its plain admission is disarming. She blames herself, then almost blames him, wondering whether she might have been better at it if he had been different. That is honest in a way no one else in Part One manages, and it is hard to hear. A strong answer weighs both readings: Judy as the parent who walked away, and Judy as the parent who at least tells the truth about her failure, which Ed has not done.
“I killed Wellington, Christopher.”
Ed, confessing, Part One (p. 49)
Ed has just promised to tell the truth from now on, and this is the truth he chooses to tell. After lines broken by pauses and hesitation, the short sentence and his son's name land like a blow. Stephens makes the confession both the solution to the detective story and the destruction of trust, because by Christopher's logic a man who killed a dog is dangerous. The irony is sharp: honesty, which the play values, arrives too late and in the wrong way, so that it frightens rather than heals.
“Father had murdered Wellington. That meant he could murder me.”
Siobhan, reading Christopher's book, Part One (p. 50)
Siobhan speaks this while Christopher, alone and folded into a ball, counts in powers of two until he gets stuck repeating the same number. The reasoning is chillingly simple: two short sentences in which the second follows from the first, as in a proof. It is not what Ed meant by confessing, but it is how Christopher processes it, and it drives the whole of Part Two. Setting the words in Siobhan's calm voice over his panicked counting lets the audience hear his logic and see his terror at the same time.
“It's a book and it's for me and not everybody, just for me”
Christopher, refusing Siobhan's idea of a play, Part Two (p. 53)
Part Two opens by admitting that it is a performance. Siobhan asks whether the class can make a play out of Christopher's book, and he refuses, insisting the story is private. The irony is that the audience is watching the play he says he does not want. The line raises the question of who owns a story about someone like Christopher, and whether telling it in public is an act of respect or of exposure. In the final scene Siobhan tells him they turned it into a play and he says yes, which suggests his view has changed.
“I see everything. Most other people are lazy.”
Christopher, on the train to London, Part Two (p. 64)
Christopher turns the usual view of him upside down: he is not missing information, everyone else is. He explains that most people only glance, while he takes in every detail, which is why a new place overwhelms him. Stephens stages the idea directly: as the company build the inside of the train around him, the Voices speak the few simple thoughts an ordinary passenger might have while looking out of the window at a field. The line invites the audience to see his difference as a way of perceiving, even a gift, as well as a difficulty, and it makes the audience's own lazy glancing part of the subject.
“Christopher, I am just about holding this together.”
Judy, at the flat, as the scene flows on to Hampstead Heath, Part Two (p. 88)
Judy's line is a confession of strain rather than an order. The stage direction that follows is made of short, broken sentences, “She breaks. She cries.”, and then she leaves the room and comes back. The rhythm shows her losing and regaining control, and she returns with a small, practical kindness, an iced lolly. The scene shows the cost of caring for Christopher without making Judy a villain, and it echoes her letter's admission that she often felt she could not take any more.
“I can because I went to London on my own.”
Christopher, to Siobhan, in the final scene, Part Two (p. 101)
Christopher answers Siobhan's cautious hope with evidence, like a mathematician proving a claim. The simple causal structure, I can because I did, turns his journey into proof of a future he has just listed: more A-levels, university, a flat with a garden. The achievements that follow are spoken in short declaratives, with Siobhan silently looking at him between them, which leaves the audience to judge. Many find the moment moving and hard-won; others hear a boy talking himself into confidence. Both readings can be argued from the text.
“Does that mean I can do anything, do you think?”
Christopher, the last line before the curtain call, Part Two (p. 102)
The last line before the curtain call is a question, asked three times in slightly different forms; the second time he names Siobhan, as if asking her directly. Christopher, who has spent the play wanting facts, ends by asking for a reassurance nobody can give. Stephens does not let Siobhan answer: the two look at each other for a while and the lights go black. One reading is triumphant, a boy who has earned his confidence. The more convincing reading holds both: he has changed, and the future is genuinely open.