I'm trying my hand at a crossover, so please tell me if I did a good job and whether or not I should continue or fix something. Not sure exactly where this is taking place in Supernatural, but it is definitely after they meet Cas and before Dean becomes a demon, so pick a time, and as for PJO, it is after BoO.
"Run Sammy!" a voice shouted through the fog.
The dark night had swallowed the two grown men. Before they could find the monster the fog had set in. New York City was dangerous enough, but with strange monsters they'd never seen and limited visibility it was even worse.
"Dean! Three o'clock!" the younger brother yelled.
The other brother swung his machete at the creature, but missed from the limited visibility.
New York had always been filled with monsters, meaning that it wasn't that smart for hunters to travel there. These idiots however were chasing after an amulet of sorts that was said to kill all who wore it. It origins were unknown, and the only identifying marks were was a small symbol etched into one corner. Bobby was still researching it, trying to figure out what the symbol was.
Dean felt his pocket buzz and the light from his phone flash. Quickly he opened it and put it to his ear, hiding behind the corner of a building with Sam as the creature gave out an angry roar less than a quarter of a mile away.
"Talk to Bobby," Dean said.
"Calm down boy," Bobby replied, his voice going in and out like there was bad reception.
Bobby continued to speak but Dean only heard bits and pieces of it. The words Bobby seemed to have said the most were "Roman" and "Pluto," but that was all he managed to get before the line cut out. Dean turned to his younger brother who was quickly and quietly reloading a pistol with silver bullets, hoping they might actually injure the creature since salt and steel didn't seem to do much.
"Sammy," Dean whispered loudly as his brother looked up at him, "Bobby mentioned something about Rome and Pluto, although I don't get how a cartoon dog would have anything to do with the amulet we're looking for."
A lightbulb seemed to have gone off in Sam's head.
"Of course," he muttered.
"Well you wanna clue me in here?" Dean asked impatiently.
"Pluto is the Roman god of the underworld and riches," Sam explained.
"I thought that was Hades," Dean replied.
His brother looked at him, "That's his Greek form."
"Obviously," Dean said sarcastically, rolling his eyes.
"As I said, Pluto was the Roman god of the underworld and riches," Sam said, and he saw something click in his brother.
"So we got stuck with a death amulet that's probably sacred to the god of death," Dean summed up.
"Actually, Pluto wasn't the god of death, just the underworld, and it's more probably that it was just something he passed along, or something one of his followers created," Sam corrected.
"Right," Dean agreed, still slightly confused.
An angry roar echoed nearby as the beast made its way closer
They continued to run, hoping that if they could at least escape then maybe it would be possible to regroup and try attacking again once Bobby figured out more. The beast however wouldn't have this and chased them to the edge of the Hudson River. All that the brothers could see was a pair of glowing eyes and a set of massive jaws.
This was the end, they thought. At least they would go out fighting. Sam aimed his gun, but before he could shoot, a figure darted out of the shadows. A few slices of a sword and the beast burst into a cloud of dust, shimmering in the fog. A single streetlamp illuminated their savior. He had messy raven black hair and sea green eyes. His blue jacket was covered in dust from the monster as he looked at the pair of brothers.
They could've stared at each other forever, but a scream emanated from about a block away. Come to think of it, the brothers could've sworn the monster was traveling with a partner. The strange boy jerked his head in its direction, worry filling his eyes before he ran off.
Sam and Dean barely had to glance at each other before they ran after the boy. When they reached the spot where the scream came from they met a strange site. An almost exact copy of the beast they had been chased by faced a girl with curly blond hair. She must've been only seventeen or eighteen, but she was armed with a long white blade made of- was that bone? Instead of scared she looked pissed.
"This jacket was new!" she screamed at it, her stormy gray eyes filled with anger.
The scream from earlier must've been out of anger as well for the now slightly torn and tattered gray jacket she wore. The raven haired boy stood, wisely, to the side as the blond girl faced off with the monster. He had the faintest hint of a smile on his face. In mere minutes the second monster was turned to dust as well.
"Stupid monster," the blond girl growled.
"Aw come on Wisegirl," the raven haired boy said, "At least it wasn't your pretty face."
She looked up at him with adoring eyes and pecked him on the lips. He grinned back at her before pointed out a small stream of blood coming from beneath the tattered part of her jacket.
The girl groaned, "As if the tear wasn't bad enough. Now the jacket's covered in blood."
She didn't even seem fazed by the fact that she got hurt. She sheathed her sword while the boy took out of pen cap and tapped it to his sword, which shrunk until it had become a pen. The boy handed her a flask from the small backpack he was carrying and she poured a golden liquid onto the cut, which almost immediately healed.
Sam and Dean looked at them in wonder. Dean tried to take a step back but hit a bottle which rolled and rattled along the street. The young couple looked up in surprise, but their eyes showed just how ready they were for another fight if necessary. The two pairs stared at each other in the foggy night, waiting for someone to make a move.
Good? Bad? Please let me know. And let me know whether or not I should continue. And if so- ideas?