The Chalice of Love

When the Goblet of Fire is hoodwinked by powerful dark magic during Triwizard Tournament, it starts spinning and transforms into its original form, 'The Chalice of Love'. This is a fanfic on a soulmate bond initiated by the Chalice between Severus Snape and Lyanna Stark, the only heiress to three oldest pureblood family lines (Dumbledore, Flemming and Black) and the stepsister of Tony Stark, the Iron Man. The love and chaos resulting from this soulmate bond between the two main characters, Severus and Lyanna, and its effect on the ensuing wizarding war forms the crux of the story.