The Case of the Perilous Palace (The Wollstonecraft Detective Agency, Book 4)

The history-mystery-science series continues as the Wollstonecraft Detectives--Ada Byron Lovelace and Mary Shelley--take on a case by royal request. Ada's imperious grandmother has absolutely shut the Wollstonecraft Detective Agency down--until they get a case from a princess, that is. The princess Alexandrina Victoria, age 9 (who will grow up to be Queeen Victoria), is the most closely watched girl in England. She is never alone. Every morsel she eats is catalogued. Every visitor overseen. Ever