Once every five-hundred years, a child is born with a dragon soul. They up and disappear one day, leaving behind nothing but stories of the child who was as fierce and dangerous of any proud dragon.

Hiccup was one of these legends.

He was a brilliant child, no matter what people thought or how useless he seemed. He was always destined for greatness, favored by the gods themselves. Destined to be a god to one day.

But they didn't know that.

See, having a friend, a brother, family in a dragon, isn't just something that happens to everyone. No matter how hard the residents of Berk try, their bonds with their dragons will never amount to what Hiccup and Toothless have. Because Hiccup was destined for greatness.

And being friends with a dragon, as close as those two are, isn't as simple as feeding them fish and petting their snout a few times. Hiccup is... powerful. Wonderful.

The people of Berk only start figuring this out when Hiccup is free to be himself, with no fear of being kicked off the island, of trying to make his Dad pound.

His eyes always darken, moving, glistening like Toothless when he's staring at a particularly nasty prey that managed to piss him off. Hiccup, when he loses his temper, is as nasty as Toothless. He may not breathe fire, or have massive claws, but he does serious damage. You're lucky if you make it out alive if you've managed to seriously anger him.

The two are always in sync, moving as one. Hiccup could misstep and before he even starts to fall, he's already standing straight, the threat of falling no more. In a fight, the two make eye contact, and it's like there's no one else, they become one. They know exactly what the other is going to do with no thought at all.

His soul is a dragon. He is a dragon born in a human body and while that makes him sad sometimes, that he'll never know what it feels like to be in a body that matches his soul, he doesn't really mind. Toothless is his everything, his world, and if he was born dragon, he might not have met Toothless and that hurts more than anything.

So all of Berk start to realize that the story of the child whose as fierce and dangerous as their dragon isn't really a myth at all. It's the truth and it's even better than the stories they heard.