New York Times best-selling author Rachel RenEe Russell has more than five million copies of her Dork Diaries books in print. In the series' fourth installment, Nikki Maxwell likes a boy, Brandon, who does volunteer work at an animal shelter. When Nikki learns the shelter may have to close, she convinces her friends to help raise money by entering an ice-skating competition! But soon- and not completely unexpectedly- pain-in-the-neck Mackenzie is stirring up trouble so she can save the day.