I am amazed by how Christopher knows the prime numbers as well as knowing every country and their capital cities at the same time, I know this when he says "I know all the countries of the world and their capital cities and every prime number up to 7,507." 


I am annoyed by the fact that Christopher's mother left with another man, as she said in one of the letters that had been sent to Christopher. and that Christoper's father was hiding all the letters that were sent to Christopher.