"I swear, Medb, if you don't keep it down, you're going to wake the whole college," Scáthach chuckled under her breath as they tiptoed through the moonlit quad of Trinity College.

Medb, her mischievous wife, giggled. "Oh come on, Scáthach, when do we ever get a night like this? Live a little!"

Scáthach rolled her eyes. "This is hardly living. It's more like... well, it's midnight. We should be sleeping."

"But the quiet makes the perfect backdrop for a little... entertainment," Medb whispered, her golden eyes twinkling.

They had just snuck out of their cozy on-campus apartment, dressed in their favorite sweats, to enjoy an unexpected spectacle. Earlier that evening, Medb had heard whispers of a battle set to unfold in the auditorium, and she wasn't about to miss it. It wasn't every day you got to see a jinn and a skinwalker duke it out in the middle of the night. And with their combined centuries of experience in the supernatural, they were pretty much the coolest couple on the block.

The auditorium's grand doors loomed ahead, the faint sound of clashing weapons echoing through the hallowed halls. Scáthach pulled out a bag of popcorn from her pocket, the smell of butter and salt tickling their nostrils. She looked at Medb, her scarlet eyes sparkling with amusement. "Alright, let's go see what kind of trouble the kids have gotten themselves into this time."

Medb clapped her hands in excitement. "Oh, I can't wait! Maybe we can learn some new tricks."

They slipped inside, the heavy oak doors groaning ever so slightly, and took their seats in the back row. The vast, empty space of the auditorium made the noises from the stage seem all the more dramatic. The lights were dimmed, casting eerie shadows across the velvet seats, and the air was thick with the anticipation of a show about to begin.

Scáthach popped a piece of popcorn into her mouth, the crunch a stark contrast to the silence around them. "Remember, we're just here to watch. No interfering unless absolutely necessary."

Medb nodded, though the twitch in her smile suggested she had other plans. "Of course, love. Just here for the entertainment."

The sound grew louder, and suddenly, a burst of light filled the room as the battle between the jinn and the skinwalker spilled out from behind the velvet curtain. The audience of two leaned forward, eyes glued to the chaotic scene before them. The air was charged with energy, and the smell of ozone hinted at the powerful magic at play.

"Oh, this is going to be good," Medb murmured, reaching for more popcorn.

The jinn, a creature of fire and light, danced around the stage with a grace that belied its fiery nature. It's every movement was a blur of color, leaving trails of sparks in its wake. The skinwalker, on the other hand, was a creature of shadow and deceit, its form flickering between that of a man and a beast. The clang of steel against the jinn's fiery shields rang through the night, echoing off the high ceiling.

Scáthach leaned back in her chair, watching the battle unfold with a sense of detachment. "Remember the time we had to referee the feud between the banshees and the selkies?"

Medb's laughter was a soft peal in the tense silence. "How could I forget? The seaweed stench took weeks to air out of the library."

The jinn let out a roar, sending a wave of flames across the stage. The skinwalker dove to the side, narrowly avoiding the inferno. The heat washed over the audience, warming their cheeks.

"Mmm, toasty," Medb said, tossing a kernel in the air and catching it in her mouth.

Scáthach couldn't help but smirk. Despite her serious demeanor, even she found the absurdity of their situation amusing. They were two ancient beings, watching a supernatural brawl in the heart of a modern university like it was a midnight matinee. The popcorn was a nice touch, a little piece of normalcy in a world that was anything but.

On stage, the skinwalker had the upper hand, its shadowy form weaving around the jinn's fiery strikes. The creature was clever, using the darkness to its advantage, but the jinn was relentless. The air grew hotter, and the smell of burning wood filled the room as the jinn's magic grew more intense.

Medb leaned closer to Scáthach, whispering, "I think the jinn's running out of steam."

Scáthach nodded, her eyes never leaving the battle. "It's tiring to maintain that much fire for so long."

The jinn stumbled backward, panting. The skinwalker took the opportunity to lunge, but the jinn was quicker. With a flick of its wrist, it sent a bolt of lightning straight at the skinwalker's heart. The creature screamed, its shadowy form dissipating into the air.

The room went still, the only sound the crackling of the dying embers. The jinn stood tall, chest heaving, the flames around it slowly dying down. The two spectators in the back row clapped, startling the creature. It whirled around, spotting them in the dark.

Scáthach raised the popcorn in a salute. "Nice show."

The jinn's eyes narrowed. "You should not be here, mortals."

Medb waved a hand, the popcorn bag fluttering in the breeze of dispelled tension. "Oh, we're not just any mortals. We're... well, you wouldn't believe us if we told you."

The jinn took a step closer, curiosity piqued. "Then perhaps you can tell me what brings you to this place at this hour?"

Scáthach leaned back, her tone casual. "We're just here for a little quality time. Can't a couple of immortal beings enjoy a midnight snack and a show?"

The jinn stared at them, unsure of whether to be surprised or offended. Finally, it huffed, and a small flame flickered out of existence. "I suppose not. But next time, try not to interrupt the festivities."

With that, the creature disappeared in a puff of smoke, leaving the auditorium eerily silent once more.

"Well, that was... unexpected," Medb said, popping another piece of popcorn.

"Agreed," Scáthach replied, her smile lingering. "But not unwelcome. Shall we go home, or are we in for another encore?"

Medb thought for a moment, her gaze lingering on the empty stage. "I think we've had our fill of excitement for one night."

They stood up, leaving the popcorn-scattered seats behind, and made their way back through the quiet college halls. As they approached their apartment, the sound of their laughter seemed to chase away the shadows. The night had been anything but ordinary, but in the end, it was just another chapter in their long, unconventional life together.

And as they climbed the stairs, hand in hand, they couldn't help but wonder what other secrets Trinity College held, just waiting for them to stumble upon. After all, with a history as old and storied as the place, it was bound to have more than a few skeletons in its closets. Or in this case, jinns and skinwalkers in its auditorium.