Classicly

She and Robbie had been sitting in a Chicago park when the first bomb dropped. It fell quite near them, about three miles away. She remembered the bright blinding flash. Above them the branch of a tree cracked. It fell to a point twenty feet over their heads. Then it stopped. It was as if some force held it back. The force, whatever it was, also held back the heat. But it didn't stop her from fainting in terror.