The Snake, the Crocodile and the Dog - Elizabeth Peters

In Amelia''s seventh adventure, she and Emerson take passage on a boat travelling up the Nile, enjoying a second honeymoon while they search for Nefertiti''s tomb. On the other hand, they might be heading towards murder. An exotic slave woman, a Siamese cat and a den of conspirators unite to snatch away Amelia''s happiness unless she reveals a certain secret...and at the remote dig in Amarna what she uncovers is a shocking present-day peril: the loss of treasures far more precious than any antiquity - her husband''s love or both their lives!