Explanation:
This is a Song Story. What that means, is that I took a song, and made a story to go along with it. If the text is colored and italics, then it is a song lyric. If it is colored, italics and in quotation marks, then the lyric was said in the story.
Example:
(What it looks like in the text)
"I'm coming home." I'm coming home. Tell the world, I'm coming home.

"Really?!" She asked excitedly, "When are you getting back?"
(What it looks like in normal story)
"I'm coming home"
"Really?!" She asked excitedly, "When are you getting back?"

And now, on to the story! ^-^

I walked into Ciel's office to find Sebastian helping Ciel put his coat on. I gave them a confused look. "Where are you going?"
"The queen has asked me to solve another case for her." Ciel answered, taking his cane from his father/butler.
I pouted a little. "I was looking forward to a Halloween celebration with you two..." I perked up a little. "I guess a man hunt will be exciting enough for Halloween!"
Both Ciel and Sebastian shook their heads and said, "You're not coming with."
I took a step back, acting hurt. "But... why not?"
"It may be too dangerous for you, my love." Sebastian informed me, gracefully walking over and taking my hands in his.
I looked down at the floor, sadly. "Fine...." I smiled widely and looked back up at them. "I'll set everything up for a party while you're gone!"
Ciel was about to refuse, but Sebastian smiled. "That would be lovely. Now," He said, turning to Ciel, "We must be on our way."

"The children were kidnapped by a circus group?"
Ciel was sitting across from Sebastian in the carriage, discussing the case as they rode to the site where the circus was being held.
"Yes. The circus was in the same town as each of the kidnappings." Sebastian replied.
Ciel nodded as the carriage slowed to a stop. "Alright. Let's get this over with."

*Small Time Skip*
"Boys and Girls of every age, wouldn't you like to see something strange?"

That's what the ring leader asked the crowd. Ciel was sitting by Sebastian with his arms crossed. The queen had asked him to check out this circus which had been at the scene of the past few disappearances. It was called Halloween, because, of course, it was October 31st. Ciel yawned. "This show has been nothing short of boring. Is it almost over?" He whispered to Sebastian. The ring leader held out his hand, the lights dimming just a little. The curtain in the back opened up to nothing but blackness.
"This is a special treat for all of the younger children." The man motioned for them to come down into the ring.

"Come with us and you will see, this odd town of Halloween."

All of the kids got up and went out onto the stage. Ciel nodded to Sebastian, who nodded in return and stood with him. They followed the kids into the dark and the curtains closed behind them.

"This is Halloween." This is Halloween. Pumpkins scream in the dead of night.

As the ring leader spoke, candles flickered to life and a few pumpkin guards were standing by the edges of the room. (Reference: ) Ciel walked over to one of the pumpkin guards with Sebastian right behind him. The boy looked into the pumpkin's dead black eyes. He squinted a little when he thought he saw something. Just then, all of the pumpkin guards grabbed their heads where their ears would be, and started screaming. Loud. Ciel jumped back a little and Sebastian stepped in front of the boy.

This is Halloween. Everybody make a scene.

The little children covered their ears and started screaming and running around, trying to get away from the pumpkins. One taller child bumped into Ciel, causing him to fall onto Sebastian, who steadied the boy. "Sebastian! Put an end to this!" Ciel shouted, over the other kids. Sebastian nodded, and without being seen, threw a silver knife into each of the pumpkin's heads, ceasing their screaming.

"Trick or treat till the neighbors gonna die of fright."

The ring leader chanted, appearing out of the dark. He opened his mouth, reaching in with both hands and pulled out his skull. (Reference: ) One of the mothers that had come in with her child screamed and fell over onto the floor. Ciel covered his mouth and nose, trying not to puke, as the smell of metallic blood filled the tent.

"It's our town. Everybody scream. In this town of Halloween."

The skull man started laughing and creatures flew into the room, terrorizing the children, causing them to scramble and scream. Ciel got pulled away from Sebastian to the other side of the tent. Thinking quickly, he climbed under the curtain, finding himself in complete darkness. Slowly, just like the last time, candles began to flicker to life. Ciel noticed he was standing on some kind of fabric. He looked around to see what resembled a giant white pillow. "S-Sebastian?" He called, a little frightened. Someone laughed and the ground shook a little.

"I am the one hiding under your bed. Teeth ground sharp and eyes glowing red."

A giant red creature appeared from under the edge of the fabric. (Reference: ) 'A giant bed?! How is that possible?!' Ciel thought, running in the other direction, trying to get away. He noticed a door at the edge of the bed and hurried inside of it, slamming it shut behind him. Back in the darkness, Ciel walked forward cautiously. He almost fell when the floor gave way to stairs. He started down them until he heard a woman laughing.

"I am the one hiding under your stairs,

A creature started to climb up the stairs and something fell into Ciel hair. Frightened, he reached up and grabbed whatever it was, bringing it into view.

Fingers like snakes and spiders in my hair."

Ciel was holding a handful of spiders in his hand. He screamed and threw them at the monster, whose snake finger were stretching to get him. 'I think I'll take my chances with the other monster!' Ciel thought, running back up the stairs. A tear fell from his eye. 'Why hasn't Sebastian saved me yet?!' Ciel threw open the door, again slamming it shut just before the snakes got him. The room was different this time. He was on a performance stage, looking out over a sea of pumpkin people. They all stood up, singing.

"Halloween! Halloween! Halloween! Halloween! In this Town, we call home, Everyone Hail to the Pumpkin song!"

Ciel covered his ears as they sang louder and louder, turning and, seeing a different door, ran through it, somehow getting back to the original room where the kids were still running and screaming. One of the ghosts was heading straight for Ciel, who looked for Sebastian. The ghosts and everything else suddenly froze. The Ring leader appeared again out of no where.

"In this town, don't we love it now?"

Ciel ran after him to catch him but he disappeared. "No! This isn't fun!" The leader appeared on the other side of the room.

"Everyone's waiting for the next surprise!"

He said, snapping his fingers and all of the lights went out. Ciel was starting to get really worried. 'Sebastian wouldn't let me get hurt... would he? No... of course not... (F/n) would kill him...'The candles flared revealing a dark alley. Ciel cautiously started walking towards the end. The was another path. Ciel turned the corner just as he was starting to relax again, and ran into a trash can.

Round that corner, man hiding in the trash can, something's waiting now to pounce, and how you'll scream!

Ciel fell to the ground as a monster jumped out of the trash can. (Reference: ) Ciel screamed, starting to cry. He scrambled to his feet and started to run back the way he came.

"Scream! This is Halloween! Red 'n' black, slimy green."

Ciel ran as fast as he could to try to get away from the creature. "Sebastian!!! Help me!!!" He cried, "I've had enough of this!!!"

"Aren't you scared? Well, that's just fine."

Ciel looked up, hearing Sebastian's voice. "Sebastian!" He yelled, still running.

"Say it once,"

Ciel Closed his eyes, still running. "Sebastian!!"

"Say it twice."

He started crying a little harder because Sebastian was teasing him. "Sebastian, Sebastian~!" He cried. He blinked and found himself in a room lit by a single candle and the moon, shining through the window in the ceiling. There were six doors, each one with a unique look.

"Take a chance and roll the dice. Ride with the moon in the dead of night."

Ciel looked frantically from door to door. "Which one do I choose?!" He asked. Receiving to reply, he picked the door that was wooden and black with a skull doorknob. Noticed that it was the original room with everyone running around.

"Everybody Scream! Everybody Scream!"

The leader shouted. Ciel slammed the door shut and picked a different one. It was the stage room.

"In our town of Halloween!"

Ciel shut that door, becoming frustrated, and flung the next door open. It was pitch black but Ciel could see something in the darkness.

"I am the clown with the tear-away face,"

The clown was running at Ciel as his fake white skin slid off of his bones.

"Here in a flash and gone without a trace!"

Ciel screamed, shut the door and felt a chill come over him. Someone was in the room with him. "Who's there?" He asked, annoyed.

"I am the who when you call, 'Who's there?"

Ciel could feel the slight touch of someone's fingers in his hair.

"I am the wind blowing through your hair."

The candle went out, leaving Ciel in almost pure blackness. The moon seemed to glow just a bit brighter.

"I am the shadow on the moon at night. Filling your dreams to the brim with fright!"

The moon started to get bigger as it fell towards the earth. Ciel screamed, watching in fear as it fell. The doors all opened, revealing the monsters.

"This is Halloween! This is Halloween!"

They started chanting.

"Halloween! Halloween! Halloween! Halloween! HALLOWEEN! HALLOWEEN!"

Ciel shut his eyes, crying. "Sebastian!!! Please!!!"

Tender lumplings everywhere "Life's not fun without a good scare."

The leader quieted the monsters down with a snap of his fingers. They all stood around Ciel, quietly snarling.

"That's our job, but we're not mean, in our town of Halloween.
Everybody's waiting for the next surprise,"

The leader slowly started to rip his flesh off of his bones, revealing the skeleton underneath. The monsters started chanting again.

"Skeleton Jack might catch you in the back, and scream like a banshee, make you jump out of your skin!"

Ciel was looking around when he noticed that "Jack" had disappeared. A chill went over his body and he started to shake.

"Wont' ya please make way for a very special guy? Our man Jack is King of the Pumpkin patch! Everyone hail to the Pumpkin King, now!"

Ciel dropped to his knees, unable to stand anymore. Jack parted the circle of monsters, a complete skeleton with no flesh or organs.

"THIS IS HALLOWEEN! THIS IS HALLOWEEN! HALLOWEEN! HALLOWEEN! HALLOWEEN! HALLOWEEN!"

Jack held a hand out to Ciel, who was still shaking and tears still ran down his face.

"In this town, we call home, everyone hail to the pumpkin song."

Ciel looked up at him. Words slowly came into his mind.

"La... la-la... la... H-Halloween... Halloween..."

Jack frowned. "Young Master."
Ciel's eyes grew wider. "Se......Sebastian?"
"Jack" placed his hands on either of his shoulders. "Young master. Young master." He said, shaking the boy slightly. "Young master, wake up." The room went dark and Ciel noticed his eyes were closed. He slowly opened them, to find himself laying on the ground with his head in Sebastian's lap. Sebastian was looking down at him with a worried expression on his face. "Ah, you've finally regained consciousness..." He said, pulling Ciel into his arms. Ciel was shaking and started to cry. Sebastian rocked the boy back and forth. "Shh... It's alright... I'm here... there's nothing to fear..."
After a while, Ciel looked up at him. "S...Sebastian?"
Sebastian looked down at him, smiling. "Yes?"
"Don't tell (F/n) about this." Ciel ordered flatly.
Sebastian chuckled. "Yes, my lord."

Thanks for reading! I'M SORRY!!! I KNOW THAT IT'S ALREADY  WAY PAST HALLOWEEN, BUT I THOUGHT I'D POST IT ANYWAYS! I  ALREADY HAD THIS AFTER STORY POSTED ON QUOTEV.COM BUT COMPLETELY FORGOT TO POST IT ON WATTPAD!!! HOPE YOU'RE NOT TOO DISAPPOINTED!!! If you'd like, check out some of my other stories or fan fictions! Don't forget to comment, and or follow me!