I read the fic on ao3. I'm sure the word count is over 10K and not sure about the rating. It's Drarry. Other relationships might include Scorp and Al's friendship.

The fic is set in Hogwarts, the timeline is when the Canon children are attending Hogwarts. Ginny, Harry and Draco and a few other parent characters are summoned by the headmistress because their children are under an Auror investigation and they need their parent's consent. Either a child was cursed badly or killed, I can't remember well.

Ginny was very cold the entire fic, towards H and D, who were an item (Gin and H were Divorced). Ron was an investigating Auror, H was not because he was family.

One thing lead to another and when the investigation came to Scorpius, he was asked about his boyfriend or something along those lines and Scorp said that it was 'Potter', which tipped off H that Scorp and James were together (who were dating in secret because it might affect James's quidditch career) and not Scorp and Al like everyone suspected.

So that's all I could remember, I don't know if this is enough.

Thank you so much for your help!

We believe you are looking for Murder On The Hogwarts Express (60k, E) by kkwide!