Mirabelle only wants a sleepover that never ends, ice cream for every meal and the zoo to come to stay... but everyone always says no! Written by Heather Pindar, this educational Early Reader book is book band Purple (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.