At fifteen, Margaret Pym is a normal girl, trying to understand her role as the daughter of the politically-connected Earl of Golbriggah and the world's preeminent Natural Philosopher, the Duchess of Newcastle. Her comfortable life is suddenly destroyed by her mother's death and her father's disappearance, and she is forced to flee, relying only on her wits to navigate a new world filled with dark magic and political intrigue, with the fabric of Time itself hanging in the balance.
This book is practically made for people who are curious. If you can't deal with feeling in the dark, then book isn't for you. If being curious and wondering about the universe of a book is part of what you do, then this is an excellent book to get immersed in (which I feel is really what the heart of fantasy is anyway).
Jonathan successfully crafts a complex world. I think I've only gleamed a small bit of the canon he has introduced, and look forward to rereading this in the future to get a stronger glimpse of his world. He has spun a lot more complexity than I expected! Without spoiling too much there are elements of alternative histories, magic, childhood curiosity, and a world in which one really does have to learn to know what is going on. You, just like the character, must learn what is going on rather than expect the author to have handed it all to you. There is one particular time a bit over halfway through the book when I feel you just truly go down the rabbit hole of the story and there is no turning back.
Seriously, if you like how an author constructs other worlds, if you are curious and okay not understanding everything that is going on right off the bat, then you must read this book.
Also, as a side note, there are a fair number of typos but I think most of them are pretty obvious as to what is actually meant.