What is a summary of chapter 5 and 6 of Of Mice and Men?

Chapters 5 and 6 show the end of the dream that Lennie and
George have shared and they show the end of Lennie's actual
life.

In Chapter 5, Lennie kills the little puppy that he
is trying to pet.  He knows George will be mad at him.  But while he is still in the
barn trying to figure out what to do, Curley's wife comes in.  She tells him her
troubles and has him touch her hair.  That's a mistake because he accidentally kills her
when she starts yelling.

In Chapter 6, George goes to their
spot at the river.  He knows Lennie will be there.  He talks to Lennie about their dream
one more time and then kills him before Lennie knows anything is
wrong.