Getting near to baby book by Audrey Couloumbis

Newbery Honor Book One day, Willa Jo decides she has had it up to here with Aunt Patty, so she goes up on the roof to get some fresh air. Naturally, Little Sister follows her up there -- Little Sister follows her everywhere. When Aunt Patty tells her to come down, she decides she just doesn't want to. Willa Jo and Little Sister came to live with Aunt Patty three weeks ago when their baby sister died, and they want to go home. They're worried about the way their Mom cries and sleeps all the time, and they wonder what's happening to her. The only thing that Willa Jo can think of to do is to stay up on the roof.