3) What I would like to know about my book "Harry Potter"

There are alot of things I am curious to find out about my book "Harry Potter." One specific thing is how everyone finds out that Harry Potter is a wizard. When the book starts out, noone knows that he is a wizard. So im curious to find out how his secret gets out. The last question I have is why do the families hate each other so much? It seems like since they were close family that they would love each other and be closer. These are the questions im curious to discover in my book!