DISCLAIMER:Sherlock and all its characters, etc. belongs to BBC, Steve Moffat, Mark Gatiss and its brilliant cast. I am only playing with them. No money is being from this story!

Author Note: Happy Halloween everyone! I meant to get this out on Wednesday, but alas, time got away from me. This will be the last one-shot I do for this series, this year. I may pick it up again next year for even more Halloween fun with Sherlock. Because let's face it, the possibilities are endless and there is plenty of story material here! Thanks for reading and enjoy.


Trick-or-Treat, Sherlock?

"I don't see why I have to do this," mumbled Sherlock for the dozenth time.

"Oh, stop your whining," said John, adjusting his eye patch. He, Mrs. Hudson, Molly and Mary were all dressed in their pirate outfits from the previous night's costume party. They were currently emptying large bags of assorted candy into bowls. "We've been through this. You are helping us pass out candy because it's Halloween and Mrs. Hudson asked us to." He threw aside an empty bag. "Besides Sherlock, you had fun with everything else, what makes you think you won't enjoy this?"

"I see little fun to be had in passing out candy to children," snapped Sherlock. He sat sullenly on the couch, arms folded over his chest. He had refused to wear his pirate outfit again and John couldn't for the life of him figure out where Sherlock had hidden it. Instead, Sherlock had put on a black t-shirt with a skull and crossbones on it; a gift from Mrs. Hudson.

John rolled his eyes, but it was Mary who retorted this time. "Come now, Sherlock, surely you and Mycroft went trick-or-treating when you were boys? Don't you remember how fun it was?" Sherlock was silent.

"I went as a bumblebee once," Molly piped up suddenly. She blushed as everyone's eyes turned to her. "It was my favorite costume."

Mary smiled. "My favorite was the year I went as Rapunzel. My mother made me a really long blonde wig from yellow and white yarn...I wore it around the house for weeks!" She laughed. "What about you, John?"

He rubbed his chin thoughtfully. "My favorite costume was probably," he paused for a moment and looked at the floor.

Mary and Molly leaned forward and even Sherlock cocked his head in interest. "What? What was it?"

"A tiger. I had this tiger suit I wore when I was four and five. I thought it was the greatest costume. I used to hide behind the couch and scare my sister Harry with it." John shrugged. Molly and Mary both giggled, and no one saw Sherlock hide a smile. "It was just kid stuff," said John waving them off.

Suddenly everyone turned their gaze on Sherlock. He stared back. "What?"

"Well?" asked John expectantly. Sherlock showed no sign of comprehension.

"Wh-what was your favorite Halloween costume as a child, Sherlock?" Molly asked timidly. Sherlock stared sharply at her.

"I..."

He was cut off by the sudden arrival of Mrs. Hudson in the living room. "Alright dears, it's time to go down! Sherlock, do put a coat on; it's a bit nippy outside. And can't you put on your pirate hat to match the rest of us?" She scooped up a large bowl of candy on the counter and bustled away before he could answer.

"You heard the lady, let's go!" said John cheerily. The girls smiled and picked up their own bowls of candy and headed down stairs. "Come on, Sherlock," John ordered.

Sherlock sighed. "Very well," he said. He slowly rose from the couch. "You go on, John; I'll be down in a minute."

John gave him a warning look. "You'd better be." He nodded and headed downstairs with his own bowl of candy. On the doorstep of 221B Baker Street, Mrs. Hudson had set out five chairs for all of them to sit in and pass out candy. When John had first heard her plan to do this, he wasn't sure they would have enough candy to last the night with all of them passing it out. He was soon informed, however, that Mycroft had offered to foot the bill for the candy, no doubt after hearing Sherlock would be involved.

He snorted and shook his head. After the shock of seeing Mycroft at the costume party, he decided nothing that man did would surprise him, especially when it came to keeping tabs on Sherlock. At the thought of his sullen companion, John looked back at the door to the flat. What on earth was Sherlock doing? They had already begun passing out candy, though the crowds hadn't been thick so far, only a slowly growing line of kids. Two here, one there, a small group of five. They were just about to the official starting hour.

Finally, just as John was about to storm back up stairs and drag Sherlock down by the collar if necessary, the consulting detective appeared in the doorway, bowl of candy under his arm. John smiled. Sherlock was wearing his pirate costume.

"Not a word," said Sherlock as he sat down beside John. All the girls had happily cheered when Sherlock joined them and assured him he hadn't missed much.

"Wasn't going to mention it," said John cheerfully.

Sherlock pursed his lips. "I still don't see how this is supposed to be fun," he grumbled.

"Oh come on, Sherlock," John said, straining his neck to look down the sidewalk, "Don't you find it interesting to see all the different costumes?"

"Not particularly," Sherlock answered.

John was stopped from retorting by two kids dressed as toy soldiers marching up to him and Sherlock, their treat bags open and grins on their faces. "Trick or treat!" they chorused.

"Working mother, father stays at home because he recently lost his job and he's a terrible cook. They ordered take away tonight," Sherlock muttered before dropping a candy bar in each child's bag. John did the same, though his eyes popped out a bit at Sherlock's words.

"Wh-what?" he choked, then glanced at the retreating kids' backs. They joined a tired-looking man in a rumpled brown jacket further down the sidewalk. John sighed in exasperation. "Oh for the love of—Sherlock, are you going to be doing this all night? Can't you turn it off?"

Sherlock gave John an odd look. "I won't pretend to know what you mean." Another child walked up to them wearing a little witch's dress and hat. Her face had even been painted green. "Trick or treat!" she said happily, holding out her pumpkin-shaped bucket. Both John and Sherlock dropped a candy bar in it. "Only child, two working parents, raised mostly by grandmother," he fired off quickly.

"That is exactly what I mean, Sherlock and you know it," John scolded. "They're just kids; you don't need to ramble off their life's story because you can smell their grandmother's rose-scented soap on them."

"Oh, you noticed that as well? You powers of observation are growing, John, you should be proud," said Sherlock, ignoring John's scolding tone. John rolled his eyes.

"You're hopeless."

Sherlock only smiled. He continued to ramble off his observations for every kid that came up to him, while John just sighed, and the girls ignored the boys altogether, cooing and smiling over every child and exclaiming about all the different costumes.

"Oh. My. Gods." Everyone's head turned when they heard Molly's exclamation. Wordlessly she pointed down the street, at a pair of little boys coming their way. One was taller than the other, with dark hair that was mostly covered by a now familiar deerstalker hat. He was wearing a black mini Belstaff coat and scarf with the collar popped up on the coat. John snorted with laughter.

"He's got you down pat," he laughed.

"I really despise that hat," Sherlock said mildly. He nodded towards the shorter boy beside the Sherlock look-alike. "I think that boy has done a fair job of imitating you as well." The short boy, who also had dark hair, was wearing an army green parka that looked remarkably like coat John frequently wore, jeans and little brown boots. He was marching along beside his brother with an air of importance.

"I have to get a picture of this," Molly said, pulling out her phone. She quickly snapped a few pictures as the boys approached.

"Oh, let me see," said Mary, leaning over to get a good. Molly handed her the phone. "They are so adorable! Were you ever that cute, Sherlock?" she asked, throwing him a grin.

Sherlock appeared unruffled by the question. "Of course," he answered seriously. He caught Molly staring at him and threw her a wink. She immediately turned bright red.

"Stop teasing them, Sherlock," John said, shaking his head at Sherlock's smug grin.

"They started it," he said childishly. By this time the boy Sherlock and John had arrived at 221B Baker Street. Mrs. Hudson was smiling and cooing over the pair of them.

"Oh, you look just like Sherlock and John; what wonderful costumes!" she said with a smile.

The boy Sherlock puffed up his chest a bit. "We tried to get our sister to dress as Mycroft, but wouldn't come," he sniffed.

"Then she is playing the part of Mycroft perfectly," Sherlock suddenly interjected. The boys' jerked their heads towards him, their eyes shining with excitement.

"Really?" said boy Sherlock, who sped quickly up to Sherlock, boy John in his wake.

"Yes," said Sherlock solemnly. He gestured to either side of him. "Do you see him here with me?" The boys shook their heads. "See? My brother wouldn't come either." He smiled at the boys and ignored John's clearing of the throat.

"Mycroft bought all this candy though," John interrupted, giving Sherlock a pointed glare.

Sherlock rolled his eyes. "Yes, I suppose he did. But he's still not here."

"That's right! Just like my sister," said the boy Sherlock smugly, imitating Sherlock's tone.

"But Will, Marcy did help us get ready, and she even bought you that coat!" the boy John piped up. "So she did help us, just like Mr. Sherlock's brother helped him."

Will rolled his eyes and John beamed at the little boy. "I told you Eddie, to call me Sherlock for tonight. And I'll call you John." He ignored Eddie's fair point about their sister.

From beside them, Molly and Mary laughed. "You boys certainly have the act down perfectly. You sound just like Sherlock and John, arguing about silly things!"

The boys beamed. John, who figured this act had gone on long enough said, "Alright boys, what do you say?"

"Trick or treat!" they chirped, holding out their bags eagerly. Sherlock promptly dumped half of his candy bowl into their bags. The boys' eyes widened. "Thank you, Mr. Sherlock!"

"You're welcome," said Sherlock with a smile. The boys grinned and thanked John as well, then hurried off to the next house.

"I told you tonight would be fun," John said a bit smugly, seeing Sherlock's grin.

Sherlock quickly slipped into his serious face. "Flattery is not fun," he said.

John snorted and shook his head. "Now come on, Sherlock. Tell me this: have you been bored at all tonight?" Sherlock didn't answer. "I thought not."

Sherlock studiously ignored John for the rest of the night, and continued in his game of observations about the kids. Molly, Mary and Mrs. Hudson were keeping a running tab on the best costumes, and John was happy to watch Sherlock try not to enjoy himself. When the night finally ended and the stream of costumed children finally stopped, the group picked up their chairs and mostly empty candy bowls and trooped back up stairs.

Sherlock was the last to enter and follow them up to the kitchen, where everyone was laughing and talking about the night as a whole. He remained silent, watching as the girls unwrapped several of the leftover chocolate bars and savored them delightedly. Finally he spoke up. "Captain Hook, Miss Hooper."

Everyone stopped and stared at him. Molly looked at him confusedly. "Pardon?" she said, not understanding.

"You asked me earlier, Miss Hooper, what my favorite costume as a child was. I have no doubt you are aware that I was fond of pirates as a child?" She nodded. "I was particularly fond of the story Peter Pan. Captain Hook was my favorite costume as a child, and as you can see by my current attire, still is."

Molly blushed, Mary beamed, and Mrs. Hudson smiled. "Adorable," Mary murmured.

John just shook his head. "I knew you would have a good time. Happy Halloween, Sherlock," he said.

Sherlock smiled. "Indeed."