Finding Little Sister Author:Yoriko Tsutsui, Jaylene Mory, Susan Howlett Naomi learns what it means to be a big sister, when one day she?s left to watch her little sister, Ellie, for a few minutes. While Naomi is not looking, Ellie wanders off. Naomi searches frantically for her precious little sister, and is overwhelmed with relief when she finds her safe and sound.