Santana Barnes is tired of playing second fiddle to her ballet protégé, honor student older sister Victoria. Casey Hammond is sick of her cute-as-a-button, adventurous little sister Sage, who steals all of their dad's attention.

When the girls meet in their middle school library, they learn they have a lot in common: they both love reading, they hate after-school activities, and most important, they are clearly their parents' second-favorite children.

So they decide to do something about it. They create the Second Favorite Daughters Club. The members? Just the two of them. The mission? To become their parents' favorite children by undermining their love-hoarding siblings. But is it possible to cheat your way to becoming your parents' favorite? And is being in the spotlight really what they want after all?

Bestselling author Colleen Oakes's middle grade debut, SISTER SABOTAGE is a celebration of friendship and family in all its challenging forms, and a reminder that there's no one way to stand out.