When Professor McGonagall went to visit Harry Watson, son of Mr. Sherlock Holmes and Dr. Watson, to deliver his Hogwarts letter, she was in the mindset of performing a familiar if stressful annual routine. Consequently, she was not prepared to find Harry Potter at 221B Baker Street. BBC Sherlock HP crossover AU

After the case is solved John Watson has something he wants to ask Lily Evans Potter. Will she say yes? Or will she say no? This is for the Holmes Mystery Challenge on Hogwarts School of Witchcraft and Wizardry.

Lily meets the family that adopted Harry as one of their own and one of them may know how she got there. This is for the Holmes Mystery Challenge on Hogwarts School of Witchcraft and Wizardry.

Unbeknownst to our trio working on Lily's case they are being followed by someone. Someone who has long thought Lily Evans Potter was dead. And now that person wants answers. This is another one for the Holmes Mystery Challenge on Hogwarts School of Witchcraft and Wizardry.

Our daring team race to Godric's Hollow to find the shocking news that the murder hadn't happened last night. It couldn't have the house doesn't look like it was lived in for years. Is this a case of mistaken memory? Or is it a case of time travel gone wrong? This is for the Holmes Mystery Challenge on Hogwarts School of Witchcraft and Wizardry.

What if instead of Lily Evans Potter dying the night she and her family were attacked on Halloween, Lily lived but got transported to world of Sherlock? She has no memory of what happened but the flash of the killing curse she knew should have killed her. This is her adventures with Sherlock and Watson. For Holmes Mystery Challenge on Hogwarts School of Witchcraft and Wizardry.

Recueil de Drabbles - Là où la Magie passe, la paix trépasse ! C'est la faute d'Harry tout ça, en plus il entraîne d'honnêtes gens dans ses histoires ! ... A moins que ce soit en réalité de leur faute ? Les londoniens n'ont qu'à bien se tenir qu'à Harry débarque chez eux, avec des compagnons hauts en couleurs ! Multi-couple - Serie 'Un soupçon de Magie'

harry was taken from his relative's doorstep and was given to the Holmes family, they adopt him and he becomes Sherlock Holmes. Found at the age of 11 he goes to Hogwarts. How will this effect the war? Harry!Sherlock Holmes/John Watson

John's last year at Hogwarts.

What if Sherlock Holmes came across Harry Potter after the Dursleys had left him for dead? Based on a prompt from WRose. Starts at the beginning of Prisoner of Azkaban and Sherlock takes on a paternal role for our young wizard. Rated T for violence.

No one would call Mycroft Holmes a nice man, at least not if they wanted to see the next morning, and few would call him a family man. His life was relatively simple, aside from taking care of his reckless brother and keeping the British Government running. But when a long-withheld secret is revealed, Mycroft will push everything aside to secure his family.

Professor McGonagall's interdisciplinary papers program - one which would allow professors to work together for a more holistic study of magic - was an excellent idea. If - and only if - you didn't get saddled with the transfiguration professor, Sherlock Holmes. [Sherlolly, Professorlock AU]

Luna had enough of chasing cryptozoological creatures and living out of a trunk, at least for a while. Maybe in a year or two, she'd go back to traveling the world. Renting a flat in central London would be a change of pace from the wild reaches, certainly, but there'd be people around again. That would be nice. (HC fill)

Death held a grudge. The Holmes brothers had a friend. Voldemort isn't the only heir and Harry got himself a guardian. Join Stella as she grows up fighting Death's ultimate goal and explores magic with her friends cheering her on in the process. Standard Disclaimer applies.

Maintenant qu'Harry a découvert qu'il n'est pas le seul à pouvoir faire de la magie, il n'a qu'une hâte : voir ce nouveau monde ! Entre années à Poudlard et années d'enfance, entre Temps et Contretemps, venez suivre les aventures d'Harry P. Watson-Holmes ! (Partie 4 de la série "Another Way")

When Hermione leaves the wizarding world behind, choosing to aid Sherlock in his desperate search for Moriarty, she learns much more about the consulting detective than she ever thought possible. *Sequel to Nights in Diagon Alley*

Faint music could be heard coming from across the room. Sherlock spun to his left to see his violin floating in mid-air, as though being held up by an invisible musician. The 'Liebestod' from Wagner's Tristan and Isolde flowed with perfect elegance from the instrument. No musician could ever play with that amount of sheer flawlessness, not without the help of something…more...

There's a new neighbour living in the flat opposite theirs and she's a riddle wrapped in a mystery inside an enigma. One that both Sherlock and John are hell bent on solving, even it if involves a little stalking.

Hermione is very busy with her work as an Unspeakable so it's with great reluctance that she accepts the Minister of Magic's demand to be a muggle's bodyguard for the next two weeks. But really, how hard can it be to protect this Mycroft Holmes?

Needing somewhere to stay for the night, Hermione knows of a place they can go. Even if it's not ideal.

Sometimes, John and Sherlock accidentally fall into the magical world. First, Sherlock shrinks to the size of a Liliputian, then a client begs Sherlock for help in capturing a monster that has been terrorizing users of the tube, but it gets stranger still when they investigate a murder by broom...

He was the one who walked on the thin grey line hung in the air that separate black and white, and he gladly, willingly did so. OR: a brief look at two young boys from two different worlds, forced to grow up far too young, so different and so similar at the same time.

Soulmate AU...Neither Sherlock nor Hermione are eager to find the person whose first words to them will be the ones that are written on their forearms.

After nearly being killed by the villainous James Moriarty, Harry meets Sherlock Holmes and John Watson; two peculiar men who take him in after he's left without a family. What happens when a letter with emerald writing shows up at their door?

Sherlock Holmes: A self-proclaimed Sociopath, incapable of love or showing emotions. Harry Potter: A world-proclaimed Psychopath, incapable of hatred or hiding emotions. Two people who couldn't be more different, right? Anyway, their paths could never, ever cross, could they? Now see them, solving crimes together with Wason, Father and Son reunited. T-Safety I own nothing.