Eleven-year-old Javier lives his life in a symphony of his own making, humming melodies that sync with his footsteps. But when a bone-deep chill disrupts the mild autumn air, Javier discovers a "spectral light" that isn't a melody, but a cry for help. His discovery of a sea-glass locket leads him to Alara, a ghost whose story was cut short decades ago. To grant her peace, Javier must look past the "ethereal form" of his fears and uncover the truth hidden behind Oakhaven's ordinary facade.