This story starts with a dog. A boy found it had been killed and tried to find the suspect.
At first I couldn't trust the narrator, that is the boy. In this book the chapters are numbered in prime numbers. The first chapter is 2 and the third chapter is 5. The chapter 1 and 4 don't exist. I wondered if in these hidden chaphers something critical to find the murder occurred.
The reason why I couldn't belive him was his way of thinking. He might be too objective to make good relationship with others.'I think prime numbers are like life. They are very logical but you could never work out the rule'(p.15) 'the mind is just a complicated machine.'(p.146) The chapters might be numbered in prime numbers just because it is his life.
People say that logical thinking is important. Feeling, emotion, and such kind of things are often said to be inferior to objectivity. For lack of subjectivity or objectivity life seems embarrassing. So I suspected that he was lying.
'a whole population of frogs ,or worms, or people, can die for no reason whatsoever, just because that is the way the numbers work.'(p.128)