Jackson frost was loved by his family until he froze the village he was then took in by the dunbrough family Merida as a witch jack was a wizard the dunbrough's loved jack like he was their own they always wanted what was best for him and Merida they taught jack how to control his magic jack and Merida always fought once jack froze over her room the next morning he woke up to this "JACKKKK" the next half an hour was spent running around and trying not to be killed or shot by merida "merida stop please woah nearly hit me that time" he said between laughs.
The next couple years past they were eleven but after the mordu and pitch black indecent it really started getting dangerous they had to move so where else so they acedentily moved next to the boy who lived so they got the letter the same day as hiccup the same day they realised their best friend was the boy who lived because of hiccup being the runt is the school and snotlout bullying him . Hiccup,merida and jack became the best of friends even snotlout was scared of them when they were together. Little did they know it would change thier fate.