Gabby lives by two unbreakable rules: don’t expose her kind, the Sary, and don’t fall in love—too bad some rules are made to be broken.

When Gabby’s most difficult charge accidentally shoots her in front of a class full of students, the event exposes her carefully hidden identity. She shifts from looking like a normal teen to her secret Sary form, revealing her wings and the existence of her kind—immortals who try to keep people from committing suicide. Her incident attracts the attention of the next leader of the Sary, Jassen, who offers her an impossible bargain: she can keep her wings if she makes amends with those who know the truth. Things get more complicated when a rebel Sary, intent on exposing them to the world, starts interfering with Gabby’s work. And there’s no denying her attraction to Jassen, who is torn between his duties and his heart. With threats at every turn and her immortality on the line, Gabby has to find a way to save the Sary or surrender the sky forever.