The true purpose of the Voidsong is revealed! The end of the world was just the beginning! With the Voidsong s influence spreading deep into the fabric of reality, Aquaman and the Flash are the only heroes left standing. The apocalyptic circumstances seem to have finally forged a true partnership between these two disparate heroes, which raises a glimmer of hope. But as they head beneath the waves to do battle with the entity behind the song, what closely guarded secret will shatter the trust they d formed?