The next day, in light of Chloé's disappearance and subsequent murder, Roger spoke to Miss Bustier's class again:

"Students, I realize you're all worried that you could be the next victim of this mad killer, but I assure you that this person is nothing more than a copycat hankering for attention. In fact, my department has some definite clues regarding the killer, and they will be caught before this day is over, so just go on and enjoy your Halloween party, OK?"

The students gave a collective "OK", but little did they know, the killer was closer than they thought…

Later on in the day, the Halloween party was in full swing. Students were all dressed up and grooving to the sound of "Fear" by Easy Going, the disco lights adding to the whole experience. There was a buffet table and some dining tables set up as well, and Adrien – dressed as Naruto Uzumaki, more precisely the Naruto: Shippuden iteration – was piling food on his plate.

"Adrien, I'm glad you're enjoying yourself, but please, don't overdo it with the food," said Kagami, dressed as Sakura Haruno, again the Shippuden outfit.

"What?" Adrien shrugged sheepishly.

Kagami shook her head, but nevertheless took some food as well and followed Adrien to an empty table.

Meanwhile, Andreas – dressed as Shoto Todoroki – and Rose – dressed as Mina Ashido, complete with pink body paint and thick eyeliner to simulate Ashido's black sclera – were getting down on the dance floor.

"Wow, you're such a good dancer, Andreas!" said Rose.

Andreas smiled. "As are you, Rose."

"Hey Andreas, good call on the music!" said Ivan Bruel, dressed as a human version of Shadow the Hedgehog. "I'm not usually into disco music, but this stuff is cool!"

"Yeah, you really set a spooky mood!" said Mylène, dressed as a human version of Amy Rose.

"Thanks, Ivan and Mylène!" said Andreas. (Wow, Mylène looks really hot dressed as Amy.)

"You're welcome!" said Ivan and Mylène simultaneously.

Andreas turned back to face Rose, lest she or Ivan get jealous of him for looking over Mylène. Meanwhile, Nino – dressed as Lando Calrissian – looked over the whole scene with a smile on his face. As he spun the records, he was thankful that Andreas had introduced him to such frightful disco jams. For his next tune, he put on "Battle In the Snow" by Meco Monardo, which kept the party jumping. Meanwhile, Marinette – dressed as Touka Kirishima from Tokyo Ghoul – and Luka – dressed as Ken Kaneki from the same series, more precisely in the √A variant of his outfit – joined Adrien and Kagami at their table.

"Hey Adrien! Hey Kagami!" Marinette waved at the two. "I LOVE your costumes! I'm such a huge fan of Naruto!"

Adrien took a break from stuffing his face full. "Thanks, Marinette!"

"Indeed, it's one of my favorites, too," said Kagami. "And Luka, you and Marinette are from Tokyo Ghoul, right?"

Luka smiled. "Very good guess, Kagami! Never guessed you were a fan as well!"

"I've actually never read the manga nor watched the anime, but I plan on doing so one day."

"You should! It's really well-done!"

Marinette smiled nervously. "Yeah, it looks too scary for me lololololol!"

Suddenly, out of nowhere, the Mighty Morphin' Power Rangers communicator sound emanated at the table.

"What was that?" said Marinette.

Adrien pulled out his phone. "Oh, uh…that was my dad! I forgot I had to do a couple of chores tonight! Later!"

Adrien got up from the table and waved at everybody as he left the school, Nino having switched songs to "Runaway" by Bill Conti.

In the cafeteria, Adrien shed his Naruto getup and opened his jacket to reveal Plagg.

"About time ya let me out!" said Plagg. "It was hard to breathe in that costume!"

"No time to complain! Plagg, claws out!"

And with that, Cat Noir headed off to parts unknown.

Meanwhile, Roger and a couple of teams from the French National Police's RAID unit were gearing up to barge in to the old mansion on Place des Vosges that Sabrina was talking about. The RAID members were dressed up in typical SWAT-style gear: black uniforms, black PASGT helmets, black balaclavas, black ballistic vests and black combat boots. Each of them were carrying a Heckler & Koch G36 assault rifle. Both team leaders radioed in to Roger:

"15-Lieutenant, this is Team 1. We are in position."

"15-Lieutenant, this is Team 2. We are in position."

"Roger that," said Roger. "You have go order to move in."

Both teams were stacked up against doors at different parts of the mansion. Each team leader cracked their respective doors slightly and tossed in a flashbang grenade. Once the flashbangs went off, they moved in.

In the meantime, Gabriel and Tomoe heard the "bangs" of the flashbangs, and they knew it was a sign:

"Is somebody here?" said Gabriel.

"We're saved!" cried Tomoe.

Thus far, for each team, everything was textbook as they moved throughout the dingy, grimy halls of the mansion, keeping their rifles as the ready in case the killer popped up. They knew that thanks to their training, the likelihood of them catching the killer and coming home alive was that much greater. Little did they know, however, was that they were dealing with no ordinary killer, and the leader of Team 1 was about to find this out the hard way. Without knowing it, he activated a tripwire, which caused a bunch of shotguns and rifles hanging from the ceiling to rain lead down on him. Not even his ballistic armor could save his life.

"15-Lieutenant, this is Team 1-2! Team 1 Leader is down, I repeat, Team 1 leader is down! Requesting an ambulance!"

"Roger that. Team 1-3, attend to Team 1 Leader. Everyone else, continue as planned."

"15-Lieutenant, roger."

Team 1-3 attended to his fallen comrade, while the other two continued on as planned. Little did Team 1-3 know, he was about to be next when he felt someone tap him on the shoulder. He turned around, and Cat Noir was standing there.

"Cat Noir! Thank GOD you're here!"

"CATACLYSM!"

Cat Noir disintegrated Team 1-3 before moving on.

Meanwhile, the remnants of Team 1 met up with Team 2 and continued on with their mission. Despite the loss of two team members, they were just as determined as ever to see this mission through. When they passed through a room that was meant as a living room, they heard a door shut behind them, and then another closed ahead of them.

"What's going on here!?" exclaimed one of the team members.

Suddenly, they heard a hissing noise, and they looked around, only to see…

"THE GAS!"

The team members scrambled about in an attempt to evade the poisonous gas that was filling the room, while the leader of Team 2 radioed in the situation to Roger:

"15-Lieutenant, this is Team 2 Leader! We're trapped in a room and it's filling with gas!"

"Roger, Team 2 Leader; I'm coming in."

The remaining RAID members attempted to bust their way out, but no matter how hard they tried, they just couldn't escape the room, and they eventually succumbed to the poisonous nerve gas.

Having heard Team 2 Leader's cries for help, Roger went in with his SIG Pro SP 2022 pistol drawn, knowing that whoever this killer was, they didn't mess around. Thus far, he didn't have any traps to worry about, but he never knew. Eventually, he came upon the grisly sight of Team 1 Leader's and Team 1-3's corpses, nearly dropping his pistol in the process. He radioed in the situation to headquarters:

"HQ, this is 15-Lieutenant."

"Go ahead."

"HQ, I have two officers down. What's the ETA on the ambulance?"

"15-Lieutenant, ETA on ambulance is 10 minutes. Continue search of building."

"Roger that, HQ."

Roger was careful enough to step over the tripwire that did Team 1 leader in, and everything seemed to be going all right from there, until he rounded a corner and saw…

"Oh, there you are, Cat Noir! I could really use your help!"

Cat Noir pointed off in the opposite direction. "You go that way, Lieutenant; I'll go this way."

"Right!"

Meanwhile, Gabriel and Tomoe heard what was going on, and the former resigned himself to his fate:

"There's no good way out of this, is there?"

"NO! Someone should've come to rescue us by now! Goodbye, Gabriel Agreste! Shinkakuseibutsu yori mo chīsai! Seinaru barisuta!"

Grabbing her saber, Tomoe stabbed herself in the gut and proceeded to disembowel herself, much to Gabriel's horror. However, even if it was too late for Tomoe, Gabriel came to believe that there was still a chance for himself when Adrien walked in, wearing an M17 gas mask.

"Adrien! You've come to rescue me!"

Adrien briefly stared at Gabriel before reaching for one of the two boxes that he'd provided for his father.

"Adrien, NO! What are you doing!?"

Adrien took the Butterfly Miraculous, thereby sealing away the key to Gabriel's handcuffs.

"Most people are so ungrateful to be alive," said Adrien. "But not you. Not anymore."

Adrien turned away and headed for the door.

"Adrien, where are you going!?" Gabriel reached for Adrien. "GET BACK HERE THIS INSTANT!"

"Game over."

Adrien exited the room.

"ADRIEN, YOU CAN'T DO THIS TO ME! I'M YOUR FATHER! ADRIEN!"

Adrien didn't look back as the room filled with propane and the fuse tripped, barbecuing the Villain Formerly Known As Hawk Moth. In the meantime, he shed his gas mask and looked for a good way out of the house when…

"Adrien?"

Adrien turned around and saw Roger, gasping upon doing so.

"Lieutenant Raincomprix! Thank GOD you're here! The killer got my father and he tried to get me, too!"

"Which way did he go?"

Adrien nervously pointed to one of the hallways. "I think he went that way!"

"Got it! I'll get you out; it's not safe here!"

"Thanks!"

Adrien followed Roger and smirked, having gotten away with being the Jigsaw Killer.

Criticism is gold. Negativity and nitpicking are pyrite.