Walter: Apocalyptic Thriller Book One

Walter is an odd boy. To say he is not like the other kids is an understatement. Being odd doesn't win you many friends, nor does it give you anonymity. Kids can be mean... Walter doesn't care what the other kids do or say to him, because he knows a horrible secret. Walter knows when the world is going to end.
The apocalypse is coming The only people that can save the human race is a young boy, and a mysterious man from the stars.
Walter is Book one in Ernie Howard's Apocalyptic Young Adult series.