Theodosia and the Staff of Osiris

Theodosia Elizabeth Throckmorton is 11 years old. She has spent her whole life in the London Museum of Legends and Antiquities, where her parents work. Theo's mom and dad are passionate Egyptologists, and she herself can recognize and lift ancient curses (including from her cat Isis!). The whole of London is shaken by a bold crime – in one night, mummies were stolen from all the museums and private collections. The Throckmorton family is shocked more than anyone else – for mummies were found in the Museum of Legends and Antiquities! Theodosia is ready to immediately start an investigation to divert suspicion from her dad. She has to find a connection between the missing mummies and the mysterious staff also found by her in the museum… What is this object? And what is its power? The answers will turn out to be more than ominous…