one day Twilight babysits the cutiemark crusaders. as suspected they turns the entire library upside down.
In order to save her precious system picks up an old poniestale book with stories from all around the world.

She sits down and tells the three fillies three stories from far up north where there is trolls, witches and brave ponies to prevail over them.

this night Twilight told the cutiemark Crusaders these stories:

The filly who tricked the troll

the 7th father at the barn

Sweetie Belle and the helpful mares

Disclaimers:

I use some names that is fan names or canon background pony names in the Poniestales, pleas be aware that I am not trying to keep to their original or fandom characters at all times, I am just bad at coming up with names so I am just claiming Twilight uses the name of ponies in town in order to make it easier for the girls to get into the story

All stories in this fic is inspired by Norwegian fairytales, they are rewritten to fit the pony universe and in order to make them more innocent.

I am not able to write in the Apple Blooms/Applejack's accent to save my life

and yes, Poniestale is the name used for Fairytales in Equestria, Spike said so in episode one season one