Locked up Hiccup x Reader

(Y/N) is different.
So is Hiccup.
She has a secret to keep.
He has a secret as well.
She is threatened to never spill.
He is forced to never tell.
Then they get tangled in each other's business.
And that's when things get chaotic.

(Y/N), is a girl that is trapped in a tower and her father never lets her leave.
Of course she has a strange part about her, it's noticeable. Unfortunately, it isn't easy hiding this kind of secret in plain sight.

Hiccup is a Viking who isn't all about what he says he is. For a boy who lives with his father and doesn't talk a lot though, having a secret as big as this isn't easy to keep as you might think.

(Y/N) and Hiccup both know that something is going on in each other's lives, it's obvious. The way he acts unnatural or scared, the way she changes the subject, it's too hard to miss.

Of course, secrets are meant to be exposed , so how is (Y/N) and Hiccup going to stop anyone from knowing? What happens when their parents find out? Will they get separated? Or will love keep them together? In the end their parents will have to accept that these two love each other and they can't separate true love.

After all, u can't be...

Locked up.