Lots of things are mysteries But that doesn t mean there isn t an answer to them This is Christopher s murder mystery story There are also no lies in this story because Christopher can t tell lies Christopher does not like strangers or the colours yellow or brown or being touched On the other hand he knows all the countries in the world and their capital cities and every prime number up to 7507 When Christopher decides to find out who killed the neighbour s dog his mystery story becomes more complicated than he could have ever predictedBACKSTORY: Meet the author and learn about the background to Christopher s story