Read the series that inspired the smash-hit Disney film, starring Anne Hathaway! Mia and Michael are finally an item! Royally Obsessed is the fourth entry in the Princess Diaries series by Meg Cabot. Now that they're together, Mia and Michael have a hot first date planned - she can barely sleep, dreaming of the dress she will wear to impress him. But, just before the date, an unmissable royal engagement turns up. And, as Grandmère starts laying on the relationship advice, could it be that she has another, more esteemed suitor in mind for Princess Amelia Mignonette Grimaldi Thermopolis Renaldo? Continue the royal fun with Prom Princess, the fifth book in the series. Previously published as Mia Goes Fourth, and in the US as Princess in Waiting.