If Jack frost got as he wanted, all the dragons should go to hell. He hated them. They always destroyed his beautiful ice sculptures or spit fire on his snowman.

The kids in his town can't run into a dragon though because the dragons don't live here. Dragons life on a island together with a queen. Jack knew it because he have been there. To hot for him. Where did he even get the idea to fly into a volcano?
Imagine if Jamie should run into a dragon.
So yeah, Jack frost's life is great. He just wished he had someone to talk to.

He flew over to the lake in the forest. The lake has always been a great place when he had nothing to do, which is always. It took some time to get there, but when he was there he could always build a snowman only to see it be destroyed by some viking kid the next day. He was really interested in vikings, but neither them saw him.

But, when he come to the forest, he see no bunny or deer, he see a dragon. And not just an ordinary dragon. No no.
He has never seen this kind if dragon before. He lower himself on a branch to see better.

It was black, Perfect to hide in the night. It has 2 large ears and 6 small 'probably not ears' Jack though.
It walked on 4 legs, and his wings were huge, but one thing he did not get, the dragon have 2 different tail fins! One original black one and one brown.
One thing was sure, the dragon have not made it by itself. Someone must have made it for him.
Another thing that caught Jack's eye was a saddle. 'Yep' he thought. 'Someone have made friends with that dragon!' Who could have done that? WHY have someone done that? How? A thousand questions.
In this area the vikings live, and vikings kill dragons , don't they?

He wake from his thoughts by a voice, calling for him.
"Hey, haven't seen you here before?"

Jack look down to see a boy, maybe a bit younger than himself. He have brown , pretty long hair and big green eyes.
He wear some kind of vest, with safety straps on them, probably connected to the saddle. Under the vest he wore a light green tunic of some sort and was way to thin for his own good.
He stand with his hands on his waist.
"But on the other side I was not here very often. Why are you spying at me?"
The dragon stands behind Hiccup, watching Jack's every move which makes him kinda nervous.
"C..can you see me?" He ask, so shocked he felt like crying. It couldn't be. He checked behind him in case he talked to someone else, but no one is there.
"Yeah, shouldn't I?" The boy ask, now confused.
"I have been invisible for so long, I didn't though..."
"Invisible?" The boy ask, now curious.
He walk closer to the branch Jack sitting on, but keep his distance.
"Yes." Jack said, now grinning madly.
"But finally someone can see me! What's your name?"
The boy now seem very happy himself and smile at the older boy on the branch.
"Hiccup Horrendius the 3, son of Stoick the vast."

Jack jump down from the branch and hold out his hand, still smiling and Hiccup took it.
"Jack Frost."
Hiccup paled slightly.
"I..It is you? I mean, Everyone is telling stories about you...No one believed you actually existed..." 
Jack looked at Hiccup, now very curious about this all. The vikings telling stories about him?
"You must have." It was more a statement that a question.
"Or you shouldn't see me."
"Yes." Hiccup blush slightly."I always believed you existed."
Jack smile at Hiccup who smile back.
Then Hiccup broke the silence.
"You wanna fly with us? I was gonna see if this tail fin works. I worked on it the whole night."
Jack paled (even if you can't see it so clearly at his already pale skin.) and backed away.
"I..I really don't...like those creatures."
Hiccup turn to him, clearly shocked.
"You don't? But Toothless would never hurt anyone." He pleaded.
Jack looked at 'Toothless' as he called him, up and down.
Sharp teeth and sharp claws. Even though he was immortal he was afraid of death.
"A..alright Hiccup. I will just keep my distance."
Hiccup smile slightly and jumped into the saddle. Jack watched with awe as Hiccup chanced the tail fin with his foot. As Toothless took off from the ground, Jack drifted with the wind, leaving the ground behind him.

Hiccup tried his best to chance the tail fin when he was supposed to, but it was really hard.
When he was flying upwards, he lose control and fall off the saddle, making both he and Toothless falling to their death.

Jack diving when they fall, wanted to be prepared to catch him. The life of the boy was more important than that beast.

But somehow Hiccup managed to get into the saddle but they have to much speed and were heading for some kind of maze but with huge rocks. Jack fly above and watched with wonder how Hiccup throw the paper away and was flying without it. He knew in his heart how he would turn his foot to get out in one piece.

Jack laughed when Toothless though it could be fun to light fire on himself and his rider.
They landed on a cliff a bit away and Jack followed them, sitting down in front of Hiccup as he leaned against that horrid creature. Jack crossed his legs and held his staff in his right hand, laying it against the ground.
Hiccup held his fish above the fire that beast have spit out.
He was about to say something when Toothless makes some very unpleasant noises before throwing up a fish.
Jack makes a disgusted face but laugh when Hiccup say 'no thanks, i'm good."