<Dd> Christopher's father, a boiler engineer . Prior to the beginning of the story, he has been living with Christopher as a single parent for two years . </Dd> <Dd> Christopher's mother . Early in the book, Christopher writes that she died of a heart attack two years before the book's events . </Dd> <Dd> Christopher's paraprofessional and mentor at school . She teaches him how society works and how to behave within its complex guidelines . </Dd> <Dd> One of the neighbours who lived near the Boones, but who has left his wife before the story begins . </Dd>

The curios incident of the dog in the nighttime