Theodosia is a young lady of about 12 living in England between the world wars. Her parents are archaeologists and curators of a small Egyptian museum in London. The School Library Journal called her a “combination of Nancy Drew and Indiana Jones.” She finds herself mixed up with several secret societies and an Egyptian magician Awi Bubu all of whom want to get their hands on some artifacts with special powers. A mummy’s mut (spirit) attaches to her brother Henry, requiring her to perform a ritual from the Book of the Dead. She has further adventures with help from a family of children who are former pickpockets and rat catchers. I loved the writing style. Theodosia’s “voice” is well developed. Her book would appeal mostly to girls from about 8 to 12 years.
I placed it tentatively in the quest genre because one could construe entering the Museum basement as crossing the threshold into a magical space. Theodosia is a heroine trying to keep the bad guys from getting ahold of artifacts with special powers. She goes through various trials and tribulations and needs to use magical incantations as well as her wits. The book has more funny parts and prat falls than most quest books.
This appears to be number two or three in the series. ISBN 978-0-547-22592-0, 375 pages.