here is a few ideas for storys
the return of hiccup
planing on running away hiccup is about to go to toothless in the cove to leave but then astrid comes out and starts threatening hiccup but instead of astrid beating up hiccup hiccups new side finally reveals itself his evil side manages to fight of asrtid until toothless comes and helped hiccup he pins downs astrid and roars in her face showing the power of the night fury and traumatizing her making her develop a fear of night furys and watches hiccup flies of with toothless but not before giving her a dangerous and threatening message "go back to berk tell everyone what you saw today and tell them this the night furys will return and when we do come back berk will be no more" paring hiccup x heather
the call of dragons
sick of the bullying tired of being mistreated hiccup runs away before he meets toothless while traveling on a ship through a storm he ends up stranded on a island which just happened to be that on that day valka was their and she found him laying on the beach deciding to help me she finds out he is her son and when he wakes up he Finally found his mother after telling him what happened at berk valka takes him in 1 year after living with toothles hiccup finds toothles with a baby night fury anthore year passed and valka and hiccup found more and more people who were willing to live with dragons they start a tribe 3 years later the two decided to return to berk to see if there willing to change their minds about dragons if not they will kill the queen and never return but when berk betrays them they learn that when dragons protect their home and flock members they will show no mercy especially the alpha