This is the great granddaddy of the super thriller books. It was time to read it again after decades of rest.
It is an old trope for us now, but this was the first convincingly realistic book about an atomic bomb in NYC. It is amazingly well written and probably an inspiration to many great writes that came later.
Collins and Lapierre did write some other great books like Oh Jerusalem! Is Paris Burning and Freedom at Midnight which will put the independence of India and the whole non-violence movement in a whole new perspective. It sure as hell opened my eyes.