Best Adlock Crossover Fanfics

by Ariana (ariana_paris)

Sherlock's unexpected visit to Princeton-Plainsboro, ostensibly on a case, threatens to turn House’s life upside down as he has to face up to a secret he has kept for thirty years.Author's note: This entire fic is based on the video “Cat's in the Cradle” by daasgrrl, which combines House (starring H

by bendingsignpost

After years of waiting for wealthy patrons to faint, Dr John Watson discovers a far more interesting patient in the opera house basement. (AU through a Phantom of the Opera lens.)

by LokiBitch07

When John Hamish Watson is 28, the vampires rise.There are new rules and restrictions for humans.John joins the resistance for the fight to regain the freedom of all mankind.Vampire Sherlock identifies John as a special blood donor, and decides that he wants to claim him.

by paperclipbitch

"You're wearing my underwear again, aren't you," Joan says.

by Verbyna

The fixer, the consultant, the quartermaster: one by one, the Holmes brothers become state secrets.

by Francesca_Wayland

When Irene Adler contacts Mycroft Holmes with some shocking information and instructs him not to share it with Sherlock, he believes it to be a calculated power play against him. In some ways he's right, but the truth is more complicated, and personal. This is an AU sequel to 'Neither A Soldier Nor

by SailorChibi

John thought the most he'd have to worry about now that Moriarty was dead was figuring out how to get a job without Sherlock getting him fired and the planning the bonding ceremony with Mummy Holmes. But it turns out Mummy's not so pleased about the choice her sons have made, and she has different p

by Lawli_Pawp

Queen Irene of the Kingdom of Ealdor is visiting Camelot to discuss a peace treaty and this leads to Arthur and the rest of Camelot discovering that Merlin is keeping some secrets, specifically his two brothers; Sherlock and Mycroft. What was Merlin's life like before he arrived in Camelot?

by shirleyholmes

Utter crack AU--Joanna Watson is a badly dressed BAMF being wooed by a criminal mastermind. Her sassy gay best friend, Sherlock, has no fucks to give. And Mycroft is scandalized by the lot of them...........“I just got a love note. From Jim Moriarty. Jim- fucking- Moriarty--Sherlock, don’t you have

by hobbitsdoitbetter

London, 1892. Mrs. Molly Holmes and her husband have been living a polite, amicable and entirely passionless existence since their disastrous wedding. But when Mr. Holmes' infamous former mistress comes back to London, their domestic peace is thrown into chaos. Could Adler's return be the end of the

by twistedthicket1 (orphan_account)

Sherlock Holmes hates watching over Humans. Hates his job, taking care of the little village of Recheinbach. It's all boring. Boring and dull. All he has to do to keep himself busy is let it rain. Banished for years to the outside of his village due to an 'incident', the Water-Spirit dreads the fact

by orphan_account

“You thought he’d be amazed by your cleverness, didn’t you? Faking your death, two years on the run. You thought about how proud he’s be. How impressed.” She moved closer, almost toe to toe. “That’s what kept you going. Showing off for John.”

by waketosleep

(Coda to A Scandal in Belgravia)"I just," said John. "It's been a week since.... Are you alright?"

by splix

All John Watson wants is a peaceful fortnight's holiday in Cornwall. Fate has other plans.

by Francesca_Wayland

Missing series of scenes from A Scandal in Belgravia. How does Sherlock actually escape from the Karachi insurgents himself, and what happens when an adrenaline-filled Sherlock finds Irene waiting for him in his hotel room right after his audacious rescue? COMPLETE.

by everybodylies

The love story of Sherlock Holmes and Joan Watson.It takes years.

by wellingtonboots

Sherlock knew he couldn’t stop the explosion any more than he could turn back time and make sure none of this could ever happen. He needed to make the most of what time he had left with John. They would be together in these final moments and that was what truly mattered.  AU – Mycroft Holmes leads

by ASongofSixpence

And it's sad because what John doesn’t know is this:It was never a suicide note. It was a love letter.

by DoctorRainyStardusttheThird (orphan_account)

Sherlock is kidnapped and drugged. Nothing major, but in hospital, in front of John and Lestrade, Sherlock's undone mind begins to spill secrets Sherlock's kept buried for years. ‘Please don’t send me back, Mycroft,’ Sherlock said, his voice barely a whisper. His eyes were focused on something over

by rude_not_ginger

Sherlock Holmes is a reluctant babysitter of the young child of one of his clients. But who is this boy? Who is his mother? And how does it all relate to Sherlock?John Watson on the case!