The Curse of the Pharaohs - Elizabeth Peters
I liked the mystery, itself, even though I nailed the main culprit early on, but it didn't take long for Amelia's arrogance to grate on my nerves. Also, she seems to believe that the main way for a woman to show her strength is to continually berate men and to consistently ignore any tenderness in her own nature. That whole angle got old after a while and moved into eye-rolling overkill for me.