You can't weld a heart, but you can build a god.
When master mechanic Eirene Calder implants a forbidden Aether Core to save her dying sister, she awakens "The Song"—an ancient frequency that begins rewriting her sister’s soul into living clockwork. Now, hunted by an Archon who sees her sister as a battery for a dying city, Eirene must stop the transformation before the machine claims them both forever.