I just finished "Nefertiti" tonight. It was really very good. It's told from Nefertiti's younger sister, Mutnodjmet's point of view. If you like historical fiction of the Egyptian variety you won't be disapointed!
I accidentally read "The Heretic Queen" first. Don't do that! It won't completely ruin it because the books don't run one right into the other...but if you're like me at all it'll just drive you nuts!
I'm gonna pick up "Cleopatra's Daughter" this weekend. I'll let you know what I think!