The billy button flower on Annie’s grave is a spark of brightness in the darkness, just like Janey was a bright spot in the awfulness of school life for both Annie and Tim, and just like they’re bright spots for each other now. Annie knows that no one and nothing—not even the loss of her friend or Teacher’s cruelty—can ever take from her the things that matter most: her humanity, her connection to others, and her memories of those whom she loves.