AU Divergent Timeline (1)

An Alternate Universe where a particular point in canonical history was different. What if X had happened instead of Y?

• Better Be Slytherin! (Harry Potter) by Jharad17
  As a first year, Harry is sorted into Slytherin instead of Gryffindor, and no one is more surprised than his new Head of House. Snape mentors Harry fic.
• Into the Cornfield (Doctor Who) by Nostalgia
  The obvious AU from School Reunion.
• Old Things Made New (Doctor Who) by Carmen Sandiego
  The Doctor doesn't regenerate, Rose does.
• The Slow Path, or Two and a Half Centuries in Two and a Half Days (Doctor Who) by Amy Wolf
  AU from Girl in the Fireplace.
• Voiceless (Doctor Who) by Veldeia
  "What if that thing took his voice with it? What if whatever it did was permanent?" An AU that branches off from Midnight (New Who, Series 4).
• Almost A Squib (Harry Potter) by BajaB
  What if Vernon and Petunia were even more successfull in 'beating all that nonsense' out of Harry? A silly AU story of a nonpowerful, but cunning, Harry.
• Arithmantic Equations as a Second Language (Harry Potter) by Absolute Tash
  Missing memories, alternate futures, and the ancient power of Arithmancy combine as Hermione Granger promises Severus Snape that she is coming to save him.
• Counterclockwise (Harry Potter) by Georgina the Hyena
  Percy has lost all of his siblings and his father in the war. But with a cunning plan and illegal time travel, he may just get them back.
• Familiar (Harry Potter) by Sita Z
  What if Harry came across Slytherin's monster before the diary incident... and asked it to help him deal with his least favorite teacher?
• Fourteen Fathoms (Harry Potter) by Vain
  Snape discovers something disturbing about Harry and acts... like Snape.
• Grim Dawn (Harry Potter) by Robin4
  Prior to Harry's third year, he leaves the Dursleys, desperate to escape. But before the Knight Bus can stumble upon him, he encounters someone far different, and his world begins to change.
• Incarnate (Harry Potter/Sandman) by FayJay
  In which Severus Snape summons Death, and endeavours to bend her to his will.
• Insurgere (Harry Potter) by Silver Pard
  Hufflepuff is the house of the leftovers, the losers, the forgotten. Well, Tom Riddle thinks, it's time to change that.
• Nobody Cared (Harry Potter) by Etherian
  11 yr old Harry misses the Hogwarts Express. Snape is sent to find out why. What he finds changes any preconceived notions he might have had about the Boy-Who-Lived. AU, manipulative!Dumbledore, DE's, Voldy, but no horcruxes.
• Pot Luck (Harry Potter) by Sita Z
  Raised to despise magic, eleven-year-old Harry Potter isn't sure being a wizard is a good thing... although a certain snarky Potions Master might just change his mind.
• A Study in Magic (Harry Potter/Sherlock Holmes) by Vixit
  When Albus Dumbledore shows up at Baker Street with strange demands and baby-filled picnic baskets, Sherlock Holmes is less than thrilled. Featuring Detective!Harry, Competent!Quirrell, and the world's only private consulting detective. No slash.
• A Study in Magic (Harry Potter/Sherlock) by Books Of Change
  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 unprepared for the shock of finding the cause behind Harry Potter's disappearance. BBC Sherlock HP crossover AU
• Symbiosis (Stargate) by Yvi
  When Jolinar doesn't die in the Ashrak attack, Sam is faced with a difficult decision. She can trust Jolinar and go to the Tok'ra base with her, hoping that they will be able find a new host, or she can stay at the SGC and trust the NID not to harm her. Sam decides to flee the base with Jolinar, not realizing that this is only the beginning of an adventure that will change her life.
• Where Does It Keep Its Brain? (Harry Potter) by Sarah1281
  What if, instead of going back for Ginny's diary, Arthur decided to owl it to her? What if he discovered it wrote back? What if he took this knowledge to Moody and Dumbledore? The Chamber of Secrets has NOT been opened. Enemies of the heir, rejoice.

Enemy Within

• (1) Harry Potter and the Enemy Within (Harry Potter) by Theowyn of HPG
  In his sixth year at Hogwarts, Harry's mental link to Voldemort is stronger than ever. Can Snape teach him to control the nightmarish visions? And is their connection the key to ending Voldemort's reign? (AU, set after OOTP)

Equilibrium and Evolution

• (1) Equilibrium (Harry Potter) by Twinheart
  When Harry Potter comes to Hogwarts, Snape is forced to reexamine his initial impressions.

Harrys First Detention

• (1) Harry's First Detention (Harry Potter) by Kbinnz

Map of the Stars

• (1) Now We Have a Map of the Stars (Doctor Who) by Zauberer Sirin
  Total AU: Martha never left and the Master was never killed. The Doctor keeps his promise of taking care of him. Sort of. Martha helps. Kind of. And then Dalek plot happens.

Redefining Life

• (1) The Definition of Home (Harry Potter) by Oliver Snape
  Harry runs into Snape while trying to find the definition of home, and finds himself drawn into Snape's summer Order task by the headmaster, looking for a location outside of London. Along the way, he and Snape learn a few new definitions themselves.
• (2) The Definition of Family (Harry Potter) by Oliver Snape
  Now back at Hogwarts, Harry balances school and his home life as he prepares to face Voldemort and learns to trust Snape's guidance. Along the way they both learn that family also means support.