Who is Tim Hamner? Harvey Randall? Senator Arthur Jellison? Maureen Jellison? Gordie Vance? Andy Randall? Mark Czescu? Where do each of these characters wind up at the end of the story?

How does the comet become known as the Hamner-Brown? What are scientific predictions about the comet?

What is "Hammer fever?" What happens to those who "catch" this ailment? What did Alim Nassor plan to do when everyone was catching Hammer fever? What happens to his plan?

What is the New Brotherhood Army? Why do they practice cannibalism?

Describe Andy Randall. What seems to be his relationship with his father prior to the comet strike? What makes you think so? Where was he during the comet strike? Why does he decline his father's offer to return to the Jellison ranch?

Who is Harry Newcombe? What is "trash day" on Harry's route? What does Harry...