Nina is very shy, but she has a secret superpower. when a silver owl disappears from a neighbour's house, it's the shy super girl who has to find the culprit. A Children?s Bookshelf Selection: Each month our editor?s pick the best books for children and young adults by age to be a part of the children?s bookshelf. These are editorial recommendations made by our team of experts. Our monthly reading list includes a mix of bestsellers and top new releases and evergreen books that will help enhance a child?s reading life.