Okay, this one is an actual decent dream...

There was a girl, who could live between the real world and her own mind. Like, the worlds from her books and dreams. 

I'll give you an example. 

When she stands on an empty playground (in this world), she can suddenly be on the playground from her memory, with the sun shining, kids playing around. 

But she doesn't notice how she does it. It's kinda like a normal switch between for her. 

So her and her family are on vacation in Switzerland and they're swiming in their pool, in the middle of the night. 

The mountains can be seen in the background, the house is surrounded by a forest, and in the star-clear night, the northern lights come out. 

The girl reads a book (Alea Aquarius/Percy Jackson/ Rulantica) and while she reads it, her body constantly switches. So one time, she's sitting next to her cousin, and a second after, she's diving in the ocean. 

In the nightsky, there's suddenly a gigantic, glowing, virus-formed spaceship(?) 

Meaning that the two world kinda fused together for her, you know? 

A purple, goup-like alien thinggy suddenly attacks her and her siblings and cousins, but it isn't much of a threat, because it can't swim and is rather fat. 

But their parents got scared and they all locked themselves up in the house. 

Jack Frost suddenly apprears and he fixes her book, because she accidentally ripped it. 

Let me explain: 

In this world, she was reading about this goup alien and at the same time, said alien attacked her. (Because of the two worlds) and in the real world, she ripped out all the pages with the alien, so it wouldn't bother her in her dream world. But in the dream world, she just ripped a perfectly fine book. 

Understandable? No? 

Moving on

The kids go on a journey to find out what the spaceship is about and to eventually return the goupey thing. 

They walk along the empty highway and Jack Frost reads her book, while the others try to explain curse words. 

The youngest cousin suddenly get's the idea to learn how to fight, because maybe they would need to defend themselves. 

So they practice with stuffed ragdolls they found in the woods. And when they continue to follow the path, the sun starts to rise. 

It's a beautiful forest with old, wooden sculptures. Ropes and lianas hang from the branches and the girl suddenly lives in her memory again: 

It used to be a playground in the forest, with a magical aura, surrounding the area. She sees kids climbing up the ropes and she joines them happily. 

The soundtrack from IT suddenly starts playing. 

And finished! 

Idk about y'all, but this could actually turn into a good story...