The Shadow Girls — Nina Laurin

Set in the ruthlessly competitive world of elite ballet schools, this psychological thriller is for fans of Black Swan and Megan Abbott's The Turnout.
 
Georgina Prescott's world collapses when her daughter, star dancer at a prestigious ballet academy, is grounded by a metatarsal fracture -- the same injury that ended Georgina's own career two decades prior. And one person knows what happened: Naomi Thompson, Anna's best friend who takes over the principal role.

Dawn Thompson is proud of her daughter. But suddenly, ugly rumors course through the close-knit ballet community saying that Naomi somehow caused Anna to fall and hurt herself. But Naomi would never do such a thing… Would she?

While Georgina grows obsessed with Naomi, Dawn wonders just how far a mother should go to protect her daughter. Then Anna receives an anonymous letter telling her to keep her mouth shut -- and vanishes without a trace…