Get ready for a Royal Crush in this third book in the middle-grade Princess Diaries spin-off series, written and illustrated by New York Times- bestselling author Meg Cabot. Olivia Grace Clarisse Mignonette Harrison is turning thirteen. Even better, she's finally starting to get the hang of this princess thing. Just in time, too, since her half-sister, Princess Mia Thermopolis, is expected to give birth to twins any day now It's pretty much the worst...