The trip of a lifetime (chapter one)

The first chapter of The Australian Connection is a little discription of this story. We know that Alex is a 18- year old boy who is going to travel to Australia to meet his real dad. But we don`t know everything about his feelings about this decision. This does that the reader have to think about that things.
I asked myself why Alex`s dad had left his mother and him. Besides I want to know how the trip to Australia for Alex will be. I think that Alex does the right if he want to visit his dad in Australia. But I don`t unsderstand while Alex`s dad have not write any letters before Alex had write this one letter to his dad that he`ll come to Australia.
So I want to read either!!!!