What is the author's style in Crocodile on the Sandbank by Elizabeth Peters?

Elizabeth Peters has a Ph.D. in Egyptology, and as a result, the archaeological detail in the novel are quite accurate. Her descriptions of the lands of Egypt, the pyramids, the people, the excavations, the tombs, and the painted pavement are filled with details only known by one who has experienced them in person. The novel is set in 1884 and features a proper English woman brought up as a scholar in Victorian England.