Edgar keeps waking up his new baby sister, but he can’t help being noisy. Luckily, his friend Ruby has an idea! Can Edgar learn to be as quiet as a mouse? A sweet story about friendship and how by trying hard, even a huge elephant can be as quiet as a tiny mouse. Written by Karen Owen, this educational Early Reader book is book band Turquoise (aimed at 6-7 years, Year 2). The colour grading system is recognised by the Institute of Education which reflects the reading difficulty. The book content, language style, phonics and layout are taken into account to determine this.