Katie thinks Callie might want to be friends again after the leader of the Popular Girls Club moves away, but realizes that is not the case when Callie announces they will be baking cupcakes for the school fundraiser.

Alexis feels like a third wheel in her cupcake baking group while her bestfriend Emma is away.

The Cupcake Club helps Katie out when Olivia accuses her of getting preferential treatment from their math teacher, who is also Katie's mom's new boyfriend.

Alexis Becker deals with her crush on her friend Emma Taylor's brother Matt and supplying the desserts for her sister Dylan's sweet sixteen party.

Mia is still getting used to having her new stepdad and stepbrother around when she begins to struggle with writing in her Spanish class, and since her family, who speaks Spanish, is willing to help, Mia learns that she is lucky to have three parents.

"Katie's mom asks Katie for a huge favor: will she spend some time with Emily, her boyfriend's daughter? Katie agrees and brings Emily to a Cupcake Club meeting. Things go well--almost too well. Everyone likes Emily so much, Katie wonders if her friends like Emily more than they like her! And if her mom marries Emily's dad, will Emily become her favorite daughter? Katie is an only child, so all this sibling stuff is new to her. She's starting from...

"When Mia reads about a Design-a-Dress contest in a magazine for "budding designers ages 12-16" she is excited. But she doesn't realize how much work designing--and sewing--a dress truly is until she starts on her contest entry. While Mia stresses out about all the work she has to do, she and Katie have an argument about, of all things, fashion preferences!"--Provided by publisher.

Sierra does lots of things. She's captain of the softball team, the director of the school play, and she's on Student Council, but her favorite thing to do is work at the ice cream shop with her best friends Tamiko and Allie. But when her parents decide to foster three kittens and their mama, Sierra's life gets a lot more catty! Can Sierra do it all--and maybe find homes for the cats, too?--

Casey is planning lots of fun things to do over spring break with her BFF Lindsay. But her parents ruin her plans when they tell her she has to join them on a family trip to look at colleges with her older sister, Gabby. Casey is devastated until things take a surprising turn for the better when she runs into her summer crush, Matt! Matt is not only as smart and cute as Casey remembered, but he gives her an idea to make Donut Dreams donuts even more...

When Mia arrives at her new school, her goal is to be open to and friendly with everyone, but everyone at Park Street School fits into a clique. When the Popular Girls Club takes an interest in Mia's awesome fashion style and wants to recruit her, Mia must decide between them and her great new Cupcake Club friends. It's like choosing between her divorced mom and dad and her old house and new house. Is it always going to be Mia in the middle, or can...