As part of the school's community week, Donna decides to spend a week helping at the stables. That's fine - she loves horses - but the three other girls she has to work with are stuck-up and always nasty to her. When the other three start messing about, there's nearly a serious accident.This book is part of the very popular series Siti's Sisters, featuring Siti and her group of friends, who are so close they call themselves The Sisters. This is a short, low-level chapter book, with an easy-to-read, fast-moving narrative and is part of Set 2, which is suitable for ages 10+. The issues presented are, as always in this series, relevant and appealing to girls of this age. The Sisters are here!