the curious incident of the dog in the night time

Christopher

A 15-year and 3-month-old boy who loves math and astronomy, wants to become a scientist, and lives in Swindon.

Mr. Shears

Roger Shears is a character associated with Christopher's mother.

Good Day System

Christopher has a system where seeing 4 red cars in a row is a 'Quite Good Day' and seeing 5 is a 'Super Good Day.'

Metaphors

Christopher finds metaphors confusing and believes they are lies because they don't have a literal meaning.

Wellington

The dachshund belonging to Mrs. Shears, who was found dead with a garden fork.

Swiss Army knife

An item Christopher carries with him.

Dogs

Christopher likes dogs because they are honest and do not confuse him with expressions.

Prime Numbers

A type of number that Christopher likes and uses to number the chapters in his book.

Routines

Christopher dislikes unexpected changes and prefers order in his daily life.

Astronomy

One of Christopher's interests, as he imagines space as calm and logical.

Neighborthood Investigation

Christopher begins to investigate the death of Wellington by questioning neighbors.

Father's Admission

Christopher's father admits to him that he killed Wellington and also that Christopher's mother is alive.

Toby

Christopher's pet rat.

London Trip

Christopher travels to London by himself to find his mother after discovering she is alive.

Emotions

Christopher struggles to understand complex emotions and often avoids eye contact.

Golden Retriever Puppy

At the end of the story, Christopher's father buys him a puppy named Sandy, symbolizing rebuilding trust.

A-level math

The advanced level math course Christopher takes, reflecting his love for mathematics.

Color Preferences

Christopher dislikes the colors yellow and brown but likes red.

Memory

Christopher has an exceptional memory and can recall details like a video recording.

Detective Novel

Christopher describes his story as a murder mystery, inspired by Sherlock Holmes.

Stress Indicators

When stressed, Christopher groans, curls into a ball, or counts things to calm himself.

London Living Challenges

Christopher struggles with living in London due to his routines being disrupted by his mother and Mr. Shears' arguments.