Yay! Here is another fabulous How To Train Your Dragon/Percy J crossover. And sorry...no OC in this story (and the characters don't know each other whatsoever). The story takes place about mid way in Blood of Olympus (I will try not to spoil anything cause I'm nice...Mawhahahaha...just kidding...I won't spoil anything) and a few months after How To Train Your Dragon 2. Percy J characters' credit go to Uncle Rick and How To Train Your Dragon characters' credit go to Dreamworks. Please review Fan Fic readers!

Percy

Percy took a deep breath of the salty air. This was his father's territory. He tried to be outside more often in order expel Tartarus' acrid air from his lungs. Behind him Leo cursed softly under his breath.

"Now what did you do?" Percy without turning around.

"Um...stubbed my toe," came Leo's response.

"You're a horrible lier...what did you do?" asked Percy turning around and facing Leo.

"Fine...I accidentally dropped a Archimedes sphere into the ocean. Happy now?!" Leo said sarcastically spreading his arms wide.

Percy shrugged and willed the water to spit the sphere back into Leo's hands...and on second thought he dried it as well.

"Thanks man," said Leo wiping it with his sleeve.

"Don't mention it," muttered Percy.

He faced the ocean again thinking about his other friends who were sleeping below. The ocean churned below him responding to his thoughts. Unnoticed, fog started creeping toward them. Leo started whistling some type of haunting familiar tune. Percy jolted...remembering it as the tune Calypso sang.

Gods...Calypso, he hadn't thought about her for years. Then he remembered after Annabeth...no he didn't want to remember what had happened in Tartarus. But seeing Annabeth like that...reminded him of the heart he broke.

"You're thinking about her...aren't you," said Leo's voice.

"A little...when I was in Tartarus, Annabeth and I ran into some monsters that are the curses that monsters' wish on us when we kill them. Annabeth she...released a curse that Calypso wished on her when she killed one," said Percy sadly.

"Hey...Calypso doesn't hate you anymore," said Leo gently.

Percy turned to him and smiled. Then the fog overtook them.

"I hope this isn't the Mist," grumbled Leo.

Festus the figure head creaked.

"Ugh...Festus said it is the regular kind but it feels weird," translated Leo.

"Great..." muttered Percy rubbing his nose.

Percy then felt like his whole body was being washed over by ice. He felt the water change from the warm, hospitable water of the Mediterranean to the cold, hostile waters of the Atlantic Ocean. Gasping he nearly fell over from the sudden change.

"Dude...what's wrong?" asked Leo rushing over to him.

"Water...changed," Percy managed to say.

Leo (after helping Percy to his feet) dashed to the GPS consul.

"Holy Hephaestus..." Percy heard Leo curse.

"What is it? What is wrong?" asked Percy walking over to him.

"Nothing," answered Leo.

"I already said this but...you're a horrible lier Leo. We are in the Atlantic Ocean somewhere close to..."

"Iceland, headed for a unidentified island," finished Leo.

"You should know by now that I have perfect bearings at sea," teased Percy.

"Where are we now?" asked Leo as the fog lifted.

"We are at 67 degrees north, 20 degrees west blah, blah..."

Percy was cut off a screeching sound. Then a bluish whiteish fireball exploded the deck next to them.

"Oh come on! I just replaced that last week!" whined Leo.

Another fireball hit the deck, this one made Percy loose his balance.

"Why are my ears ringing?" he groaned picking himself up the deck.

"We'll worry about that later! Now we have to attack whoever it is up there!" cried Leo looking at the scanner.

Percy nodded and dove behind a barrel as another fireball streaked toward them.

"Well what ever it is, it has a pretty good shot," he grumbled crawling over to Leo.

"I can pick it up on the scanner but I can't see anything above... "

A fireball streaked toward Leo. Percy dove to the side to avoid it ever since he was not immune to fire. Leo who immune caught it and flung it into the ocean.

"Hot! Hot!" he yelped waving his flaming hand around while dancing around on the deck.

Percy willed the ocean to extinguish Leo's flaming hand.

"Thanks dude...Festus...fire!" ordered Leo.

Festus opened his mouth and blasted a stream of flame above them. A yell of surprise startled the two boys. Leo threw the Archimedes sphere he was holding (after pressing a button on it) in the direction the yell came from. A scream of surprise signified that Leo had hit his target. Percy uncapped Riptide and Leo brought out a three pound hammer from his tool belt. A large dark object hit the deck with a bronze net tangled around it.

"Nice shot," whistled Percy.

"Thanks...made that net in my free time," bragged Leo.

A groan startled them. Tentatively the boys crept forward holding their weapons. Leo's hair started on fire. Percy didn't bother saying anything about it because he was to shocked about what he saw in front of them. It was large black dragon and it wasn't alone. A boy wearing a mask lay beside it holding a flaming sword.

Hiccup

Until he met the two boys, one with a glowing bronze sword and the other with flaming hair...his day was going great.

Hiccup and Fishlegs had discovered a new dragon and had to quickly sketch it before fleeing from the hatchling's angry mother. Then Snoutlout got into a fight with the twins about who stole his 'whittle dragon toy' as he called it. He tried to make the situation as least embarrassing as possible which is not easy to do when you bring up a sopping wet toy from the main well. Snoutlout spent the rest of the day trying to salvage his pride. Then Astrid need help in getting Stormfly unstuck from the barn door. Apparently, the twins had lured her there. So when Hiccup got back to his home he collapsed in his dad' chair. Toothless then bounded up to him begging for a flight around the island at night.

After making sure no one (especially his mother) Hiccup snuck with Toothless.

"Yeah!" he shouted as Toothless did a complete 360 degree turn.

"Want to do that again bud?" he asked.

Toothless suddenly snorted and growled. He glanced down. Hiccup glanced down as well and spotted a ship coming out of the fog that usually coated the sea in front of Berk. It was normal to see ships passing in front of the island but this one was massive. It had a gleaming bronze dragon figure head and a weird mounted crossbow at the front of the ship. Two boys around sixteen stood by the figure head arguing. They were wearing strange clothes. One of the boys had a weird looking belt around his waist.

"Well bud...let's drive them out. They appear hostile. We don't need another pirate attack," said Hiccup bringing his flight helmet down.

Toothless growled happily and dove down. As he drew near the boat on silent wings and shot out a fireball. Hiccup watched with smug satisfaction as the boys dogged to the side as he launched another fireball and then another. The second fireball streaked right toward the boy with the weird belt. To Hiccup's amazement, the boy caught it and flung it in the ocean. Then the boy danced around yelling while his hand was on fire. The other boy pointed at the ocean and a smallish wave roared over the side and extinguished the flames.

"Thanks dude...Festus fire!" Hiccup heard the boy say.

"Who is Festus?" asked Hiccup quietly.

Then the dragon figure head opened its mouth and shot a stream of white fire at them.

"Ah!" yelped Hiccup making Toothless dive to the side.

"i'm guessing that is Festus," thought Hiccup weakly.

A round object soared toward him. Instinctively he caught it. Instantly it exploded and wrapped him and Toothless in a bronze net. Toothless screeched in fear and pain as he and Hiccup plunged toward the ship. Hiccup managed to his sword out before they hit the deck. He watched as one of boys (the one with black, windswept hair) take out a small object and pull off the end. The object expanded into a faintly glowing, three foot bronze sword. The other boy brought out a large hammer. Hiccup groaned thinking about how he had to fight them. Then he made his sword ignite. After scrambling under the net he advanced toward the boys. They backed up.

"Dude...nice sword! How did you make? How long did it take you? Where did..." asked the boy with the strange belt.

His flaming hair had died down.

"Shut up Commander tool belt," grumbled the other boy.

"Well excuse me water boy...it's not every day you meet someone like yourself," retorted 'Commander tool belt'.

"You do realize we have to fight him...he could be working for Gaia. He attacked us after all," said the dark hair boy with his sea green eyes glaring daggers at Hiccup.

"Yeah what ever. In that case Queen Dirt Face's minion is going down!" shouted Commander tool belt.

The other boy nodded, yelled and charged at him.

Hiccup could barely deflect the sword ever since he was trying to follow their conversation.

"Gaia...who is that?" Hiccup barely managed to think before the boy brought his sword down.

Both swords clashed together making a humming noise that made Hiccup grit his teeth. Both pried and danced away from each other.

"Sweet mother of Thor he's good!" thought Hiccup.

Hiccup then took note about the boy's unprotected right side and decided to use it against him.

"Toothless! he shouted.

Toothless destroyed the netting with one massive fire ball and leaped at the boy. Then a small fire ball exploded in front of him.

"Get away from him you diablo!" shouted the boy with the weird belt.

His flexed his cupped hand and a fire ball came to life in it.

"What in Thor's name?!" cursed Hiccup.

The boy flung the fire ball at Toothless who hissed and bared his teeth. Then the bronze figure head turned its head toward them and shot out a flame. The raven haired boy tackled Hiccup out of the way. Toothless knocked the other boy down and hid behind some barrels. When the flames died down, Hiccup expected to see a pile of ashes were the boy stood. Instead he stood there with his cloths smoking.

"You okay Leo?" called the boy who had Hiccup pinned down.

"Yeah...I'm fine...Percy watch out!"

While 'Percy' was distracted Hiccup kicked him in the stomach with his fake leg.

"Oaf," grunted Percy staggering back,

Hiccup charged at him holding up his sword. Percy then yelled and wave of water swamped Hiccup.

Leo

Leo had seen some pretty weird things in his life as a demigod. But not as weird as seeing a kid with a sword that had flames dancing up and down the sides. He dogged to the side as Toothless the dragon shot a fireball at him ; the same type that struck the boat.

"What the heck man!? Stop destroying my boat!" ordered Leo.

Toothless cocked his head to one side and made a curious growling noise in his throat. Then Leo heard the familar sound of a wave screaming over the edge of the boat. The wave covered the boy up to his head.

"Well...ask him! I can't keep the water doing this forever you know," muttered Percy through gritted teeth.

"Fine...why did you attac..."

Leo was interupted by the kid throwing something onto the deck that sprayed a smelly green gas. Then boy whistled and Toothless ignited the gas. Percy got blasted down the stairs and lost his concentration on water vise. The kid landed on the ground. Leo's eyebrows felt like someone had taken a blow tourch to them but he stood up groggily. The boy stepped back with a grim look on his face. Leo glanced down to see if there was anything he could use. He caught sight of a metal contraption on the boy's leg.

"It's not polite to stare!" snapped the boy who had followed his gaze.

"Sorry...I'm guessing that you lost a leg and made a fake one," said Leo.

The boy gave him a murderous glare. Then he charged and brought his flaming sword down on Leo. Leo caught it and effortlessly yanked it out of the boy's hand. The boy stepped back, amazement clear in his forest green eyes.

"How did you..."

"Do that? Don't know...I'm special that way," grinned Leo.

Leo then spotted Jason sneaking up behind the boy. Toothless tried to warn him but Piper walked out of the shadows and spoke a soft command in charm speak. Toothless rolled over on his back and started to snore. Jason made a "keep him talking so I can club him" gester with his free hand.

"So...um...how about we call a truce and forgot this ever happened," suggested Leo.

The boy spun around and dogged before Jason could whack him.

"Bro! Stop using my face as a target!" grumbled Leo.

"Sorry dude...good thing Percy alerted us," said Jason.

Before Leo could earn him, the boy brought his metal leg (which he somehow unattached from his leg) down on Jason's head. Jason crumpled to the ground.

"Never expected the old metal leg?" smirked the boy.

He placed his leg back on and advanced toward Leo.

"Toothless plasma blast!" he ordered.

Nothing happened.

"Toothless...plasma blast!" ordered the boy. He turned in annoyence toward his dragon.

His eyes widdened when he saw his dragon was out cold.

"Never expected the old charm speak trick?" thought Leo snorting.

Hiccup

"Great...Toothless is put cold and I am without a weapon. The gods hate me. I guess I can try tricking my way out of this mess," thought Hiccup.

"Fine do what you want to me..." said Hiccup.

"All we have is some questions," said a girl's voice from behind him.

Hiccup spun around startled. The girl was very pretty; short choppy brown put into s braid. She glared at him with eyes that kept changing color.

"Now Jason!" she shouted.

Hiccup saw a bolt of lightning streak out of the clear night sky and strike him on the head.

"Wow...Thor must hate me. That is the second time lightning has hit me," Hiccup thought before blacking out.