Astrid has won a ticket for the Time Train but the funny thing is, she doesn\'t remember entering any sort of competition. But this is no ordinary train... where, or rather when, will Astrid end up? Written by Jenny Jinks, this educational Early Reader book is book band White (aimed at 6-7 years, Year 2-3). 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.