Holly Hills

Holly Hills is Heather Hills's little sister. She has only made an appearance in Rodrick Rules, The Last Straw and Dog Days, and she may appear in Book 5. She was once Greg's crush, until it failed when she called him Fregley, which Greg took as an insult. She likes Rowley, because she thinks that he is 'cute'. Greg however attempts to break this by writing a note to Holly, but what has it caused to her remains unknown so far, but it is possible this may be answered in Book 5. There is a possibility that she may like Greg, or she may be either focusing on Rowley just to make Greg jealous. In the online version, she is called Piper Matthews and is in a relationship, whereas in the books, this isn't shown.