Greetings and salutations!

But hold on, what be this? A crossover? Surely not!

Yes, this is my first crossover, brought on by a Reddit post. Warryn my friend, cheers for giving me the confidence to post this!

Comments and critiques are always welcome.

HTTYD: Foreign Gods

A Fall From Grace

Sand. Why does it always have to be sand? thought Percy, sitting up, his body screaming at him in pain. He looked around, blinking away the minute grains that fell from his black hair. It's so rough, and it gets everywhere.

"Percy?" A voice shouted from beyond a rocky outcrop that extended into the sea, the sea that filled Percy's field of view, stretching from his feet to the horizon in one unbroken line.

"Annabeth?" He called back, stumbling to his feet, legs creaking and cracking as they took his weight. The beach was unfamiliar to him, and he knew his beaches, having crash landed on 95% of them in his short lifetime. He turned, placing the sea at his back, just as a blur of orange and blue crashed into him.

"Thank the gods! I was worried, Seaweed Brain. After last time, I thought... I thought..."

"Shh. It's OK Owl Eyes, I'm still here. Not going anywhere without you."

"Ayo! Lovebirds! Quit canoodling and help a brother demigod out here, would ya?" called a voice from further up the beach.

Percy and Annabeth turned, catching sight of a hulking bronze shape smashed up against a rock. Beneath that metallic mass, a young Latino man was pinned by a gargantuan paw.

"Leo? You're here too!" shouted Annabeth aggressively, storming over to the son of Hephaestus and berating him, punctuating every word with a kick to the bronze behemoth. "Why! Did! You! Not! Shout! Back!"

Leo twisted and turned with each of Annabeth's kicks, trying to wriggle out of his predicament. "Relax! Chill! I didn't hear you!"

Percy strode over casually and gently pulled Annabeth back, restraining her fury as easily as he would the sea. He wrapped his lanky, tanned arms around her waist and held her, letting her vent her rage at empty air rather than Leo's prize possession.

"My thanks, Percy. Don't think Festus could have taken much more of that."

Percy nodded his agreement. "Any idea where the others might be? If they came with us at all, that is."

Leo grinned his elfish grin. "I think I heard our Roman colleagues on the other side of this boulder. Check it out, and if they are there, get Sparky to come lift this hunk of scrap off me."

"Is that a particularly annoying demigod I hear?" sounded a voice from behind Percy.

Percy spun to be confronted by four Roman demigods, two male, two female. "Jason, Frank, Hazel. And... Reyna? Wow, didn't expect you to be here."

Reyna's stormy eyes narrowed. "I didn't ask to be whisked away to a deserted island in the middle of who-knows-where, Percy."

"No no no, I didn't mean it like that," Percy complained, his attempt to reason brushed aside as Reyna approached Annabeth and immediately struck up a conversation.

"Leave her, Percy. She's a little out of her element here," spoke Jason softly. "Speaking of, have you seen Piper? I thought she'd be with you..." he trailed off, fear tinging the edges of his voice.

From the shadows beneath an overhang, three people stepped out: a young man in a black leather jacket, and two beautiful girls, one with feathers in her hair, the other wearing a patterned top beneath a pair of denim dungarees.

"Pipes!" shouted Jason, catching his girlfriend in his arms and soaring off with her.

"Excitable, isn't he?" Percy joked, fist-bumping Nico di Angelo as a greeting. "Now that the gang's all here, we might as well make ourselves comfortable."

Frank nodded in agreement, taking Hazel's hand in his and leading her towards the inviting waters that lapped at the beach. Percy just sat down where he was, stretching out on the warm sand. Minutes later, he felt Annabeth's soft blonde curls against his neck, and grinned to himself. It might not be so bad here after all.

"Percy, what is that? Annabeth asked some time later, pointing out to sea where Frank and Hazel bobbed on the peaceful waves.

Percy looked, one hand held up to shade his eyes from the glaring sun. He watched the water intently, whilst simultaneously reaching out with his powers to search below the surface. He felt the blots of heat that were his friends, blissfully unaware. He sighed, beginning to retract his grip as he turned to his girlfriend. "Annabeth, you're being paranoid. There's nothing—"

A blast of cold hit him, his senses going berserk as he felt the icy shadow pass through the water, as if it were death corporeal. In that brief brush, he sensed the minds of two predators, honing in on his friends, drawn by their good-natured splashing. His own mind reacted on instinct, his hand pulling the cap off Riptide and slashing the sword in a straight line, left to right, as the blade extended.

However, this time, the water in front of Percy was blasted away by a mighty shockwave. Percy and company gaped at the wall of water that formed a perfect semicircle around where the son of Poseidon stood. Frank and Hazel sat on what had been the seabed, staring down towards the base of the wall. Percy edged his way forward, sword in hand, cautious of the water. But it remained at bay, held back by some invisible force.

"Frank, Hazel, you two OK?"

Frank nodded, pointing down the slope to a heaped shape that twitched and flopped. "I don't think that thing is doing too good though," he said shakily.

Percy nodded his thanks, motioning with his sword for Jason and Nico to accompany him. Whatever the thing was, it was big. Percy estimated it was at least 50 feet long, maybe just under 20 feet in height. There were two sets of sharp fins running along its back, merging into one line as they reached its tail. Physically, it looked like a supersized Manta Ray, except for the fins and…

"By the gods, Percy. It has two heads," whispered Jason, eyeing the serrated jaws of the creature nervously. Almost as if it heard him, the two heads moved together, pointed noses connecting. A blast of crackling blue electricity pulsed outwards from the creature, knocking Percy and Nico back by several feet. Jason remained unaffected; his father being god of storms, he had electrical immunity.

"Bioelectricity," breathed Percy in awe. "That's remarkable. An ocean-going creature that emits powerful electrical fields. I may not know where we are, guys, but I think I like it." He reached out with a hand towards one of the beast's heads.

It looked at him quizzically, with both heads. In his head he heard a voice, a soft, hissing voice that echoed around his mind. "Who is this fleshling? He is strong, yes, very strong. A challenger for the Alpha. We must tell him of this one, he will want to know." Then the voice took on a tone of fear. "Lightning and death! It approaches swiftly! Flee! Flee before the furious night!" The creature flopped vigorously on the sand, edging towards the wall of water at a considerable pace. Before Percy could react, it had slipped into the water, gone in a flick of its tail.

Percy pulled his hand back. Instinctively, he swivelled, bringing Riptide up to block the blow that was destined for his head. In disbelief, he stared at the flaming blade that crossed his own, and then at its wielder. A human figure stood before him, clad in black armour that resembled scales. A pair of green eyes glared back at him from a slit in the helm. Then a voice issued from the helm. "Stop resisting. We know why you're here. You won't take our dragons."

Dragons? Percy thought. Who said anything about dragons?

Woo! That was a long opener. Poor Percy, always getting questioned at sword-point.

Next chapter will come in the next week.

Peace!