the curious incident of the dog in the night time

Beginning / Character Details

  • Christopher is 15 years and 3 months old
  • Father’s first name is Ed
  • Mother’s first name is Judy
  • Mr. Shears’ first name is Roger
  • Christopher’s teacher is Siobhan
  • His pet rat is named Toby
  • Mrs. Alexander owns a dachshund
  • He lives in Swindon
  • Mother lives in London
  • Christopher loves math and astronomy
  • He wants to become a scientist
  • He takes A-level math
  • He hates the colors yellow and brown
  • He likes red
  • Christopher carries a Swiss Army knife
  • Christopher memorizes things like a camera/video recording

Christopher’s Likes and Dislikes

He dislikes:

  • being touched
  • strangers
  • crowded places
  • metaphors

He likes:

  • dogs
  • prime numbers
  • order/routines
  • facts

Good Day / Bad Day System

A “Good Day” happens when he sees:

  • 4 red cars in a row = Quite Good Day
  • 5 red cars = Super Good Day

Yellow cars mean bad luck

SUPER Specific Character Details

  • Christopher groans when stressed.
  • He sometimes curls into a ball when overwhelmed.
  • He avoids eye contact.
  • He can’t recognize complex facial expressions.
  • Siobhan draws emotion faces for him.
  • Christopher thinks metaphors are “lies.”
  • He imagines astronauts because space is quiet and logical.
  • He does not like food touching other food.
  • He often counts things to calm himself.

Symbolism / Meanings

Detail

Meaning

Prime-number chapters

Christopher’s logical thinking

Wellington

Hidden family truths

Toby

Comfort/stability

Train journey

Independence/growth

Math problems in the book

Christopher’s worldview

Chapters 2–41

Chapter 2

  • Christopher finds Wellington dead on Mrs. Shears’ lawn.
  • Wellington was killed with a garden fork
  • Christopher found Wellington at 7 minutes after midnight
  • A garden fork is stuck in the dog.
  • Christopher notices the dog is still warm.
  • He hugs the dog because he likes dogs.
  • Mrs. Shears screams when she sees him holding Wellington.

Chapter 3

  • Christopher explains emotions are difficult for him.
  • Siobhan once drew faces showing emotions to help him understand expressions.
  • Christopher says he can recognize some emotions but not complex ones.

Chapter 5

  • Police arrive.
  • Christopher dislikes strangers touching him.
  • A policeman grabs his arm.
  • Christopher hits the officer.
  • He gets arrested.

Chapter 7

  • Christopher explains this is a “murder mystery novel.”
  • Siobhan encouraged him to write it.

Chapter 11

  • Christopher explains why he likes dogs:
    • They are honest.
    • They don’t confuse him with expressions or lies.

Chapter 13

  • Father picks Christopher up from the station.
  • Father tells him to stop investigating Wellington’s death.

Chapter 17

  • Christopher describes being good at math but bad at understanding people.
  • He likes logic and order.

Chapter 19

  • Christopher explains prime numbers.
  • Chapters are numbered with primes because he likes them.

Chapter 23

  • Christopher starts investigating anyway.
  • He knocks on neighbors’ doors.
  • He questions Mrs. Shears’ neighbors.

Chapter 29

  • An old woman gives Christopher orange squash and Battenberg cake.
  • Christopher dislikes yellow because it is one of the cake colors.

Chapter 31

  • Christopher explains “Good Days” and “Black Days.”
  • Seeing many red cars = Good Day.
  • Seeing many yellow cars = Black Day.

Chapter 37

  • Christopher talks about his mother’s death.
  • Father told him she died of a heart attack.

Chapter 41

  • Christopher continues asking neighbors questions.
  • One neighbor warns him not to go snooping around.

Chapters 43–89

Chapter 43

  • Christopher explains how Father told him about Mother dying.
  • Father avoided eye contact during the conversation.
  • Christopher wanted to visit her in the hospital but never did.

Chapter 47

  • Christopher explains why metaphors confuse him.
  • He thinks metaphors are lies because words don’t literally mean what they say.

Chapter 53

  • Christopher discusses routines.
  • He dislikes unexpected changes.

Chapter 59

  • Christopher learns Mrs. Shears used to help Father after Mother died.
  • She cooked meals and cleaned.

Chapter 61

  • Christopher explains he likes astronomy and space.
  • He imagines being alone in space because it would be calm and logical.

Chapter 67

  • Christopher meets Mrs. Alexander.
  • She owns a dachshund.
  • She knows Christopher’s family history.

Chapter 71

  • Christopher explains jokes.
  • He dislikes them if they rely on hidden meanings.

Chapter 73

  • Mrs. Alexander hints that Father and Mrs. Shears had problems.
  • Christopher becomes curious.

Chapter 79

  • Christopher talks about his memory.
  • He remembers details exactly like videos.

Chapter 83

  • Christopher explains why he hates brown and yellow.
  • Food color matters to him.

Chapter 89

  • Christopher describes school and special needs routines.

Chapters 97–127

Chapter 97

  • Mrs. Alexander tells Christopher:
    • Mother and Mr. Shears were having an affair.
  • Christopher is shocked because Father never mentioned it.

Chapter 101

  • Christopher lies to Father for one of the first times.
  • He says he was not asking questions anymore.

Chapter 103

  • Christopher explains logic puzzles and math problems.

Chapter 107

  • Father discovers Christopher’s detective book.
  • He becomes furious.

Chapter 109

  • Father grabs Christopher hard.
  • Christopher hits Father repeatedly.
  • Father throws the book away.

Chapter 113

  • Christopher notices Father acting strangely afterward.

Chapter 127

  • Christopher searches Father’s room for his notebook.
  • Christopher finds the letters while searching for his detective notebook
  • Instead he discovers letters addressed to him.
  • The letters are from Mother.
  • They are dated after her supposed death.
  • Father hid Mother’s letters in a shirt box in his closet

Chapters 131–167

Chapter 131

  • Christopher reads the letters.
  • Mother explains she moved to London with Mr. Shears.
  • She apologizes repeatedly.

Chapter 137

  • Christopher becomes physically ill after learning Mother is alive.
  • He feels betrayed.

Chapter 139

  • Christopher talks about Sherlock Holmes and truth.
  • He dislikes supernatural beliefs because they are illogical.

Chapter 149

  • Father admits:
    • Mother is alive.
    • He hid the letters.
    • He killed Wellington.

Chapter 151

  • Father explains he killed Wellington because he was angry after arguing with Mrs. Shears
  • Christopher becomes terrified of Father.

Chapter 157

  • Christopher hides from Father.
  • He plans to leave home.

Chapter 163

  • Christopher explains how people imagine the future differently from animals.
  • He thinks scientifically about human brains.

Chapter 167

  • Christopher takes Toby and leaves for London.
  • Christopher travels to London by train

Chapters 173–199

Chapter 173

  • Christopher goes to the train station alone.
  • The crowds overwhelm him.
  • He crouches down and groans to calm himself.
  • He gets overwhelmed in the station by:
    • noise
    • signs
    • crowds
    • announcements

Chapter 179

  • Christopher watches the stars and thinks about space.
  • He feels small compared to the universe.

Chapter 181

  • A police officer tries helping Christopher.
  • Christopher struggles with the noise and confusion.

Chapter 191

  • Christopher successfully boards a train to London.
  • He hides from the policeman.

Chapter 193

  • Christopher navigates the Underground system.
  • Christopher uses maps and logic to navigate the Underground
  • He relies on maps and signs.

Chapter 197

  • Christopher reaches Mother’s apartment building.

Chapter 199

  • Mother is shocked to see him.
  • Christopher tells her Father killed Wellington.

Chapters 211–233

Chapter 211

  • Father arrives in London.
  • Christopher refuses to go near him.

Chapter 223

  • Christopher struggles living in London because routines keep changing.
  • Mother and Mr. Shears argue constantly.

Chapter 227

  • Mother decides to move back to Swindon with Christopher.

Chapter 229

  • Christopher takes his math A-level exam.
  • He feels proud of himself.

Chapter 233

  • Father buys Christopher a golden retriever puppy at the end
  • Father buys Christopher a puppy.
  • The puppy is named Sandy
  • Christopher slowly begins rebuilding trust.
  • Christopher believes he can succeed because he:
    • solved the mystery
    • traveled alone
    • passed his exam
  • Christopher believes he can become a scientist and live independently one day.