Three things you need to know about Theo Dawson: 1. Theo is a GIRL. 2. Theo has blue hair. 3. Theo is a babysitting goddess. Three things you need to know about Oliver Wood: 1. He's not a Harry Potter character (and therefore doesn't play Quidditch). 2. He’s on the swim team - and he likes to show off his rocking body. 3. He gets action - a lot of it. When Mr. and Mrs. Wood leave for their second honeymoon, they hire Theo to watch over seven-year-old Luna, eight-year-old Fred … and seventeen-year-old Oliver? Mr. Popular won’t like being bossed around by a blue-haired fairy-hulk, that’s for sure.