Second-grader Dawn Bosco puts her mystery-solving skills to the test when her former best friend, Emily Arrow, loses her birthday ring   Dawn Bosco and Emily Arrow used to be best friends, until Dawn took Emily's unicorn. Even though Dawn eventually gave it back, Emily still won't talk to her.   When Emily's blue birthday ring goes missing after art class, the rest of the second grade accuses Dawn of stealing it. Dawn sets out to solve the mystery herself to prove she is innocent--and maybe get her best friend back.   This ebook features an illustrated biography of Patricia Reilly Giff including rare photos from the author's personal collection.