They Came to Baghdad by Agatha Christie

She fell head over heels for the charming young man one afternoon. And by nightfall, Victoria Jones had conspired to follow him to Baghdad.

But no daydream of love could match the real life adventure that unfolded: a stranger was stabbed in her bed, someone issued a hushed warning, and her rival for Edward's affections neatly arranged her kidnapping. From the steamy Arab marketplace to the vast and arid desert, Victoria was pursued by an unknown power that threatened not only her, but the fate of the entire world ...