"The Triwizard Reunion" Viktor Krum is visiting Hogwarts for a magical event, and your character (a fellow wizard or witch) happens to be at the school during this time. The event could be a reunion of Triwizard champions, where participants from different tournaments come together to share their experiences. Your character, whether a student or an adult, could encounter Viktor Krum in the Great Hall or another magical location at Hogwarts. Perhaps there's a magical artifact or creature causing mischief, and both your character and Krum are called upon to help resolve the situation.