Melody and Ada are traveling inside a song, learning more about Melody's powers and their shared traumas with the help of a dreaming Russian novelist. In another time, Leon is in Paris, recording an album with George Parker — who introduces him to the Prism Ensemble, a fragmented, decentralized collective of musicians, artists, philosophers, and writers who have been working together in secret throughout the entire 20th century. Meanwhile, prior to the dawn of everything, Echo dances blissfully in an Eden of silence, unknowingly entering the eternal war of sound between her and George.