Katie is dreading the boring summer ahead while her best friends are all away at camp -- something that's way out of Katie and her mom's budget. But when Katie gets a job catsitting for her mysterious upstairs neighbor, life gets interesting. First, Madeline has 217 cats and they're not exactly normal cats. Also, why is Madeline always out exactly when the city's most notorious villain commits crimes? Is it possible that Katie's upstairs neighbor...

Maureen and Francine Carter are twins and best friends. They participate in the same clubs, enjoy the same foods, and are partners on all their school projects. But just before the girls start sixth grade, Francine becomes Fran -- a girl who wants to join the chorus, run for class president, and dress in fashionable outfits that set her apart from Maureen. A girl who seems happy to share only two classes with her sister! Maureen and Francine are...

"Marlene loves three things: art, her cool tía Ruby and hanging out with her best friend, Camilla. But according to her mother, Paola, the only things she needs to focus on are school and growing up. That means straightening her hair every weekend so she can have "presentable," "good" hair. But Marlene hates being in the salon and doesn't understand why her curls are not considered pretty by those around her. With a few hiccups, a dash of embarrassment,...