Sixteen-year-old Lily Jordan is trying to suppress her tragic past so she can deal with the unimaginable hurdles of her present. Circumstances that no one at school can ever know. Not that it matters. No one cares about the quiet girl who’s better off forgotten. Brody Scott reminds her, though—every day—of the danger she poses. Trying to heed his warnings, she stays away from others. She can’t be the cause of another tragedy.

Cohen Chambers is a piano prodigy with perfect pitch and a host of admirers. When he’s not playing, he’s composing songs in his head using the pitches of airplane engines and lightbulb hums. Talented and respected, he leads the school’s show choir band with finesse. He’s a true leader with a bright, promising future. 

But when a terrifying accident turns his life upside down, everything changes. Cohen Chambers may never be the same. 

When Cohen’s trauma and its aftermath threaten to shift the course of his life forever, Lily fears she’s the cause. Riddled with guilt, she reaches out to him anonymously. An unlikely friendship develops as they exchange mailbox notes, Lily ever withholding her identity. As Cohen’s mental state continues to worsen, Lily must decide whether to look past the dangers she poses to help her newfound friend, or stay in the shadows, watching his downfall from afar.