In To Kill a Mockingbird, what sound shattered the neighborhood?

The sound of Nathan Radley’s shotgun going off “shattered” the calm of the neighborhood the night he finds someone in his yard. Jem sneaks into the Radley yard to see if he can peek through the back porch window and see Boo. Dill is on lookout on the other side of the fence.  As Jem is starting to peek through the window, he sees a shadow go across the back porch wall. Jem runs and...

The sound of Nathan Radley’s shotgun going off “shattered” the calm of the neighborhood the night he finds someone in his yard. Jem sneaks into the Radley yard to see if he can peek through the back porch window and see Boo. Dill is on lookout on the other side of the fence.  As Jem is starting to peek through the window, he sees a shadow go across the back porch wall. Jem runs and Nathan Radley shoots his gun in the air to scare the intruder.  In his haste to get over the Radley fence, Jem catches his pants on the wire and has to take them off to escape.  Nathan Radley doesn’t know who is in his yard; however, he will protect his property.  The noise brings out the neighborhood that has its own speculations on who is trespassing. Miss Stephanie is sure it was a Negro, showing her prejudice in assuming it was a black person who committed the crime. 

When the excitement is over in the neighborhood, Jem has to explain to Atticus why he doesn’t have any pants on.  Dill lies for Jem and tells Atticus that Jem lost them in a game of strip poker.  Later that night, Jem retrieves his neatly mended pants left for him (by Boo) on the fence.