Rule of Threes is Marcy Campbell’s debut middle grade novel. Maggie and her two BFFs share a love for design and decorating. They’ve entered a school contest to redecorate a section of the school. Maggie’s life at home is also fairly stable — until one visit changes everything. All of a sudden, there’s a new stepbrother named Tony who is moving in with Maggie and her parents. On top of that, one of her best friends is withdrawing because Maggie refuses to call her by her preferred name, Rakell (not Rachel as she’s previously gone by).