What have I done? (First Year)

Harry Potter - J. K. Rowling Yu-Gi-Oh! Duel Monsters (Anime & Manga)
M/M
G
What have I done? (First Year)
Summary
What if Malik, Atem, Bakura, Yugi, Ryou and Kaiba gets invited to Hogwarts and everything that happened in the anime happened before they were eleven or a few months prior to them getting invited?I don`t know what else to say without spoiling...
Note
Yeah, I try not to put down this story, but it is really hard.I don`t think I have any warnings for this chapter/prologue.Trigger warning: Dumbledore

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