Here's a very different fic that might suit your needs. It's a magical realism AU, and John doesn't even meet Mary until after Sherlock returns, but she brings them together, all three of them, ina very sane and joyful way.
Infinitely Stranger (http://archiveofourown.org/works/691226) (51980 words) by zundaerazylym (http://archiveofourown.org/users/zundaerazylym) Chapters: 10/10 Fandom: Sherlock (TV) (http://archiveofourown.org/tags/Sherlock%20(TV)) Rating: Teen And Up Audiences Warnings: No Archive Warnings Apply Relationships: Sherlock Holmes/John Watson, Sherlock Holmes & John Watson, Mary Morstan & John Watson, Sherlock Holmes & Mary Morstan, Mycroft Holmes & Greg Lestrade, Mycroft Holmes/Greg Lestrade, Sherlock Holmes/Mary Morstan/John Watson Characters: John Watson, Sherlock Holmes, Sebastian Moran, Mycroft Holmes, Mary Morstan, Charles Augustus Milverton, Greg Lestrade Additional Tags: Alternate Universe - Magical Realism, Canon-Typical Violence, Mythical Beings & Creatures Series: Part 1 of Infinitely Stranger 'verse (http://archiveofourown.org/series/63139) Summary:
"Life is infinitely stranger than anything which the mind of man could invent." - A. C. Doyle
In which Sherlock Holmes learns that reality is, in fact, far more wondrous than fiction.
no subject
Date: 2013-12-23 11:31 pm (UTC)Infinitely Stranger (http://archiveofourown.org/works/691226) (51980 words) by zundaerazylym (http://archiveofourown.org/users/zundaerazylym)
Chapters: 10/10
Fandom: Sherlock (TV) (http://archiveofourown.org/tags/Sherlock%20(TV))
Rating: Teen And Up Audiences
Warnings: No Archive Warnings Apply
Relationships: Sherlock Holmes/John Watson, Sherlock Holmes & John Watson, Mary Morstan & John Watson, Sherlock Holmes & Mary Morstan, Mycroft Holmes & Greg Lestrade, Mycroft Holmes/Greg Lestrade, Sherlock Holmes/Mary Morstan/John Watson
Characters: John Watson, Sherlock Holmes, Sebastian Moran, Mycroft Holmes, Mary Morstan, Charles Augustus Milverton, Greg Lestrade
Additional Tags: Alternate Universe - Magical Realism, Canon-Typical Violence, Mythical Beings & Creatures
Series: Part 1 of Infinitely Stranger 'verse (http://archiveofourown.org/series/63139)
Summary:
"Life is infinitely stranger than anything which the mind of man could invent." - A. C. Doyle
In which Sherlock Holmes learns that reality is, in fact, far more wondrous than fiction.