Sphinx is a 1979 novel by Robin Cook. It follows a young American Egyptologist named Erica Baron, on a working vacation in Egypt, who stumbles into a dangerous vortex of intrigue after seeing an ancient Egyptian statue of Seti I in a Cairo market. Cook's third novel, it is one of the few not centered on medicine.In 1981, the novel was adapted into the film Sphinx starring Lesley-Anne Down as Erica and Frank Langella as Ahmed Khazzan. Source: Wikipedia (en)