RAIDERS OF THE NILE, by Steven Saylor
His frantic search for the girl takes him to the home of a wealthy trader, where a mouthy young slave Djet is loaned to him to aid in his search. Which takes him into the wild and unpoliced Nile Delta, where the notorious Cuckoo's Gang hides out. No spoilers here! It's a 4.5 and, if you have any love at all for the ancient world, Saylor is your author, and all his books will please you. But start with The Seven Wonders. These really are best read in order. Just think: a whole season of mesmerizing trips into the ancient Roman world!