Crocodile On The Sandbank By
Elizabeth Peters 
 
Set in Egypt of the late 19th century, this novel unfolds a delightfully chilling tale of mystery, romance, and adventure.
When Amelia Peabody came into her inheritance she was already a spinster of 32. But she was far from ordinary, having a quick mind, a quicker tongue, and a wicked umbrella which she used for emphasis.