"Sparkle Moore is destined to be a star. Her mother is determined to turn her and her younger sister, Nova, into social media influencers and budding superstars. And after her dad has lost work as a sitcom actor, Sparkle wants to do whatever she can to help her family financially, too. But at the onset of middle school, Sparkle begins losing her hair—first her lashes, then her eyebrows, and then small circular bald spots appear in various sections...