Why does my older sister have a perfect life? I'm Mackenzie Ziegler and I'm sick of being in Maddie's shadow. The people in school don't even know my name. They call me "The Girl that is Maddie's Sister." Maddie gets all the attention and has so many friends. She's a cheerleader, dancer and the lead of every school play. When Mackenzie makes a wish on a star everything changes. Will she be able to change things back before it's too late? Even if she gets her moment to SHINE will she be ready? Maybe she'll learn to be careful what you wish for. [cover by @madieexziegler]

Don't make to many mistakes or you will get named.

If you made a wish,what could possibly go wrong? Wishes DON'T come true. Right? @Kenzieboo1234 2014

After Maddie Ziegler grew up, she started her own advice website. What will happen when a guy with the name Josh, just like her high school sweetheart, asks for advice? Will it get to her head? Or will she push to find out more?

Mackenzie. Fourteen. She's not a little girl anymore. Though she wishes to be just like Maddie, she's not. She's a trouble maker, plain, weird girl that no one understands, nothing like Maddie. She's getting tired of being compared to Maddie. This is Mackenzie Ziegler's story.

"Promise me you won't let go." Maddie's eyes filled with tears as Kenzie slowly lifted her pinkie finger. "Forever?" She smiled hoarsely, reciting the two's sisterly promise. "And always." Maddie whispered back as their pinkies locked. ••• Not all promises were meant to be kept.