Rebels by accident

What she wanted was a vacation. What she got was a revolution.
After attending her first high school party lands her in jail, Mariam thinks things can't possibly get worse. So when her parents send her to live with her grandmother in Cairo, she is sure her life is over. Her Sittu is Darth Vader's evil sister, and Mariam is convinced that the only sights she'll get to see in Egypt are the rooms in her grandmother's apartment.