Not the most dramatic or exciting one but interesting nonetheless. Most of the time the children move relatively freely and it's the events of the moment in time where they end up that creates the drama. This time it's they themselves, or rather Annie, simply by being a girl, that creates the conflict. And that is also the main thrust of their adventure this time. That back then girls and women had no rights, but that there were people who worked to change that. Also, that many things are better for girls and women in our time. Pope Osborne doesn't go beyond that, but it's a good beginning of good food for thought for very young readers. It's also a relatively good introduction to Greek Mythology and a couple of the characters.