Where’s the safest place to keep your deepest secrets? After an embarrassing assignment at school, sixth grader Annamarie Nilsson vows to only write her secrets in a diary. Secrets like wanting a best friend. And envying her dad’s favoritism of her younger sister. And the fact that she’s been spying on the neighbor girl who buries things in the creek. What Annamarie doesn’t expect is that her diary can write back to her! Diary encourages Annamarie to stay true to herself. However, she slowly makes changes to win her dad’s approval and the popular girls’ acceptance. But will someone find out her secrets and put Annamarie’s reputation on the line? Unfortunately, Annamarie isn’t the only one hiding things. It’s only a matter of time before the truth comes out.