Chapter73-113

As Chris tells his Dad that he thinks Mr Shears killed Wellington, he tells him to not mention his name in this house anymore because the man was "evil". This makes Chris wonder even more but he promises his Dad to stop his detective work anyways.
A couple of days later Christopher meets Mrs Alexander on the street who tells him the real reason why his Dad doesn´t want him to talk about Mr Shears. That´s because he had an affair with Christophers Mom and his Dads wife which destroyed their marriage.
When Christopher shows the book to one of his teachers, Siobhan, the next school day(because she looks if he makes any writing or grammar mistakes) she asks him whether he was sad about the thing with his Mom and Mr Shears. But he answers No, because mother was dead and it would be stupid to be sad about something that isn´t there anymore.