what was the ending of To Kill a Mockingbird?

he elusive Boo Radley stabs Mr. Ewell and saves the children. Finally, Scout has a chance to meet the shy and nervous Boo. At the end of this fateful night, the sheriff declares that Mr. Ewell fell on his own knife so Boo, the hero of the situation, won't have to be tried for murder. Scout walks Boo home and imagines how he has viewed the town and observed her, Jem and Dill over the years from inside his home. Boo goes inside, closes the door, and she never sees him again.