While You Were Out

Penelope Grant lost her best friend, Tim, to cancer over the summer. Now she has to start fifth grade without him, and the only person who wants to be her friend is the new school janitor-her father. To cope with her loneliness, Penelope writes notes to Tim and leaves the messages in the empty desk next to hers. When a note appears on her desk, Penelope wonders who could have left it.