"Wait, the seventh...?" Autor says, blinking. "Lucas, I think the Magypsies' names are musically based. I brushed off Ionia, but this is too much of a coincidence."

He adjusts his glasses. "In music, a Locrian mode is a diminished minor of the diatonic scale, commonly known as the evil mode. People describe it as the 'Diabolus in Musica,' or the 'Devil in Music', because its tone is so dissonant."

The music student opens his mouth to continue, but Leder's next statements blow any thoughts of the intersection of music and narrative straight out of his head. "'Pass your heart on'? What does that even mean?"