To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
My 10 year old daughter LOVED this series... She would read each one within a few days of receiving it.... Which is saying a lot, because while she is a good reader, she doesn't just take to every book I put in front of her, like her brother. So I was thrilled when these books were such a hit.