Disclaimer: Sherlock Holmes and properties are owned by Sir Arthur Conan Doyle. Sherlock and properties are owned by BBC One, Mark Gatiss and Steven Moffat. Harry Potter and properties are owned by JK Rowling. I don't make money from writing this fanfiction. The story contains spoiler for both Sherlock and Harry Potter. Also there are quotes from the novel and TV series.

Days of Wine and Roses

Chapter I

Buckingham Palace. Hermione, Ron and Harry were in Buckingham Palace right now. One must be wondering what the three of them were doing there. Well, they were invited by the Queen herself as special guest for gala dinner to honour contributors to the nation. Of course, three of them had received honours from the Queen three years ago, a few months after Harry defeated Voldemort, for services to the Country. The Queen was very fond of Harry, which was understandable, with Harry being such a nice and loyal young man. She had asked for them to come earlier to talk before the dinner was begun. Aside the current Prime Minister, the reigning Monarch also knew about the existence of the wizarding world.

After talking with the Queen, Hermione, Ron and Harry went to mingle with other guest. Or for Ron, he went to familiarize himself with the food. Hermione could only shake her head at her boyfriend's behaviour. As for Harry, he was busy talking with unknown man. The man was dressed in dark pinstripe suit. He was really tall, easily towering over Harry. And Harry was listening intently to what the man was saying.

When the dinner was begun, Hermione found herself seated next to Ron. Harry sat across her and the unknown man sat next to Harry.

"Miss Hermione Granger and Mr. Ronald Weasley," the man said. "It's pleasure meeting both of you."

"Thank you," Hermione said.

"Mycroft Holmes," the man said smoothly. "And yes, I know about your adventures."

Hermione raised her eyebrow.

"I audit books for some government departments," Mycroft said again.

That really didn't explain about how this man knew about wizarding world. And Hermione knew that Mycroft was lying about his occupation.

"He is really smart," Harry said, smiling at Mycroft.

"Thank you," Mycroft replied. "But I merely observe everything around me."

"Nonsense," Harry said again. "That was brilliant."

He and Mycroft were busy talking and Hermione suspected that her best friend was falling in love here, with this Mycroft Holmes.

Ron as usual, focused on his food rather than the sickening display of his best friend flirting with another man. It helped that the food was truly delicious. Hermione, on the other hand, couldn't wait for this dinner to be over so she could interrogate Harry.

She got the opportunity once they returned to Godric Hollow. "Spill, Harry." She ordered.

"Uhm..There's nothing to be said," Harry replied. "I just met him."

"I'm waiting here," Hermione said.

"Can I be excused from this?" Ron asked.

"Yes," she answered.

"Thank Merlin," Ron muttered. Harry was free to date whomever he wanted to but that didn't mean Ron wanted to know about his best friend escapade. The less he knew was the better in his opinion. However if this Mycroft guy dared to hurt Harry, then he had to answer to Ron.

Hermione watched his boyfriend walked away, probably to the kitchen to find cake before turning her attention back to Harry.

"Well, I was going to get drinks with Mycroft showed up and introduced himself," Harry said. "He said that he knew about wizarding world because of his job and then we started talking."

"His job?" Hermione asked, frowning. Surely not the auditing books lie.

"He audits books." Harry explained.

Harry certainly believed in this Mycroft guy. That was Harry, always the nice person. In her opinion, Mycroft was more like politician.

"And there are materials about wizarding books." Harry added.

"You seemed to enjoy your conversation with him very much," she said slyly.

Harry blushed a bit. "Well, Mycroft's really nice. And he's brilliant. You should have heard his deduction."

"Deduction?"

"He looked at people and knew about them. In fact, he also knew things about me." Harry said. "It's amazing."

It seemed that her best friend had a crush in here.

"And he asked me to have dinner with him next Saturday," Harry said.

"You said yes." Hermione concluded.

Harry nodded.

"Well, you have to tell me about your date then," she said enthusiastically.

"I don't kiss and tell," Harry said quickly.

"Meaning you plan to kiss him."

"Hermione!"

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Harry did tell her about his date with Mycroft. The man took him to Italian restaurant in London and they had nice dinner there.

"Did you kiss him?" she asked.

"No," Harry replied. "But he kissed my hand." He continued, blushing a bit.

"Mr. Potter?" A courier interrupted them.

"Yes?"

"Package for you."

"Thank you," Harry replied and signed the paper.

The courier gave him white box that was decorated with gold ribbon. There was small envelope beneath the ribbon.

Harry opened the envelope and read the letter inside. "It's from Mycroft," he said.

"Open it," Hermione said.

Mycroft had sent Harry with his favourite food, treacle tart. Harry looked really happy with the small gift so Hermione didn't ask how Mycroft knew the way to send gift to Harry's Auror office at the Ministry to Magic.

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The second and third date Harry had with Mycroft ended the same way with Mycroft kissing Harry's hand and the gift that arrived the next day. After treacle tart, Mycroft send him chocolate and nice red cashmere scarf. For his fourth date, Mycroft took him to Science Museum in London.

"Did you kiss him?" Hermione asked, teasing her best friend.

The answer was yes this time.

"He closed the museum so that we could have a private tour." Harry said. "Just two of us. No one ever did that for me before."

There was wonder in his voice and Hermione understood about that. Harry was unwanted in the Dursley family. And when he entered Hogwarts, he was pushed into the light as the Boy Who Lived and people expected him to defeat Voldemort. After everything he had gone through, Harry deserved to be happy. So, if this Mycroft Holmes hurt Harry, Hermione would chase him and made him pay.

Author's Note:

This is my ninth Sherlock Harry Potter crossover fic. Thanks for reading my fic and please give reviews. I have finished this and will post it chapter by chapter. However I might edit some parts. This is prequel of Days of Sunflowers. And the genre is humour and romance so it won't be to serious here. Harry is still young and a bit innocent at the beginning unlike in the Days of the Sunflowers which he had spent years married to Mycroft. For someone like Mycroft, if he really put his mind, I think he could have anyone in no time with him manipulating people and all as part of his job.

I have complete Sherlock Holmes novel on my iPhone so when I need information or something I only need my phone. The Days of Sunflowers is set in December 2012 and year 2013 so this fic is set at year 1998. Harry Potter timeline has been shifted backwards to accommodate Sherlock timeline.