Got this for my eldest daughter who is on this fantastic Pratchett-kick, but only for the Mac Nac Feagles. So far.
This is Tiffany the witch at age 11, off to apprentice at an old witch's house. Unfortunately she steps out of her body, and becomes possessed by an ancient creature, full of greed and spite.
Pratchett is always Pratchett, and this is no different. I liked it.