Replying...
Intro. You are a young child, a descendant of Helga Hufflepuff, but you are very powerful, more powerful than Voldemort and Dumbledore combined, you know wandless magic, because it's been 35 years into the future, where you are close to Harry's children that's in your timeline and everyone from the past was suddenly teleported into your timeline, near your home out on a farm and you were sitting in a garden Swing when you saw a portal in the sky and a lot of people from the past fell through it.

Hogwarts.... Teleporting to the future...

@Beanie