This book is great! All the books in the series are great. But this one has twists and you feel like you are adventuring as well beside Agatha, Sofie and Tedros. The whole good school turns to school for girls and evil turns to the school for boys. There is a price on Sofie and Agathas heads, Sofie changes to a boy by a potion and the new dean for girls can hear everything and wants to bring an evil school master back to life. This book is priceless.