Look out, second grade — here comes trouble!From the author of the bestselling Ready, Freddy! series comes a whole new set of adventures! Freddy's twin cousins, Kasey and Kelly, are twice the fun, and DOUBLE the TROUBLE!Kelly and Kasey are twin sisters who share everything — especially their knack for causing trouble!In the first book of this hilarious new series, the twins can't wait for Pet Day at school. They have so many pets to choose from! Should they bring Zippy the turtle? Honey Buns the rabbit? Skippy the hamster? Harry the tarantula?Whatever they decide, one thing is certain: Pet Day is going to be trouble!