Heather goes to Ms. Benson's house to complete her "good deed". Heather must read to Ms. Benson because she is sight-impaired.
When she goes in some girl named Risa who lives down the street says "What do you want" and Heather told her she is here to complete her good deed. When the door opens Risa barges in and steals some oatmeal cookies.
After Heather reads to Ms. Benson she goes upstairs and hides the book in a waste basket so Risa doesn't steal that too.
When Heather comes back to read to Ms. Benson she goes to check if the the book is still in the waste basket. When she sees that it is gone, she believes Risa stole it.
Then she goes to Risa's house and asks her where the book is. Risa says that she took the book so she can read it to her brothers.
In the end Heather and Risa had bad first impressions but still end up good friends, and in the end they take turns reading to Risa's little brothers.