What is a summary of the book the cupcake queen?

When Penny arrives at Hog's Hollow with her mom, her life changes drastically. Penny's mother now runs a bakery that sells only cupcakes, and Penny is stuck helping out. But that isn't the worst of it. Not only did she leave her friends back in NYC, but her dad stayed behind too. And then there's Charity, resident mean girl who's out to get Penny for no reason at all. But there are also her friends: Tally and Blake... and Marcus- the cute, quiet boy who runs on the beach every night. Just when Penny begins to accept her new life, she's forced to make a choice that will change everything...