"It's fun to be a Baby-sitters Little Sister. No fair! Karen is having a bad-luck day. Her favorite jeans are missing. There's no prize in the Crunch-O cereal box. And Boo-Boo the cat runs away from her! Karen tries everything to make her day better. But her bad luck just won't go away. She even gets punished and sent to her room! Poor Karen--will this be her worst day ever?" -- Back cover.

Christine Almeda is a Filipino-American freelance illustrator from New Jersey. She is also the illustrator of Lolo's Sari-sari Store by Sophia N. Lee and Maya and the Robot by Eve L. Ewing. Christine believes that through the power of creativity and storytelling, art can make life more beautiful. Visit her at ChristineAlmeda.com or @eychristine.

Ann M. Martin is the creator of The Baby-sitters Club, which has more than 190 million books in print, making it one of the most popular series in the history of publishing. Her novels include A Corner of the Universe (a Newbery Honor Book), Belle Teal, Here Today, A Dog's Life, On Christmas Eve, and the Main Street and Family Tree series, as well as the much-loved collaborations P.S. Longer Letter Later and Snail Mail No More with Paula Danziger. Ann lives in upstate New York.