I have no idea what the title is or the author, forgotten it all sometime ago

i remember reading about a fanfiction where harry along with 2 other are sent to an alternate universe because they had the same wish at the same time when they were sleeping (at least i seem to recall that was how it went)
apparently having 3 at the same time triggered some spell that sent them into a parallel dimension.
the story ended when they finally got back but i seem to remember harry bringing back his sister from another world with him.

any help would be appreciated

 

I remember that one... It was Harry, Hermione and Ginny, wasn't it?

Let me check my favorites list for you.

 

Even if you only joined to ask for one story, proper capitalisation is a must here.

 

As I recall it was Harry, Lupin and Snape that got sent to the alternate dimension. I believe Harry had a sister in this dimension and if I recall correctly, there was supposed to be a sequel.

*goes to look up the story*

Ah, it's The World As We Knew It by Lady Alinor

 

Yes, this is the fic I was looking for, ty.