Like the first book, this YA book set in the world of the Parasol Protectorate is a fun romp with slightly less sex talk than the Parasol Protectorate books. It still has a bit of romance, but it’s mostly banter in keeping with the age of the girls, with a touch of teenage confusion and angst as regards having feelings for anyone. They’re not books with great depth: the perfect description is a ‘romp’, as many people have said before me.
It annoys me that people complain about Sophronia being a ‘Mary Sue’, when a boy doing excellently at school in the same way wouldn’t be questioned. This is what she’s good at, with the help of her friends, and without them and some helpful coincidences, she wouldn’t be so good at what she does. Nor is she gracefully immune to everything the other girls say or think — she can be hurt by them, and do them injustices.
So yes, it’s a little piece of fluffy wish fulfilment. And it’s fun, and positive about female characters who can stand up for themselves and take care of themselves.