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Harry Potter and the Methods of Rationality
by Less Wrong reviews
Petunia married a biochemist, and Harry grew up reading science and science fiction. Then came the Hogwarts letter, and a world of intriguing new possibilities to exploit. And new friends, like Hermione Granger, and Professor McGonagall, and Professor Quirrell... Ch. 113, Final Exam.
Harry Potter - Rated: T - English - Drama/Humor - Chapters: 113 - Words: 623,004 - Reviews: 27096 - Favs: 15,361 - Follows: 14,178 - Updated: 2/28 - Published: 2/28/2010 - Hermione G., Tom R. Jr.
Harry Potter and the Boy Who Lived
by The Santi reviews
Harry Potter loves, and is loved by, his parents, his godfather, and his brother. He isn’t mistreated, abused, or neglected. So why is he a Dark Wizard? NonBWL!Harry. Not your typical Harry’s brother is the Boy Who Lived story.
Harry Potter - Rated: M - English - Adventure - Chapters: 12 - Words: 147,796 - Reviews: 3729 - Favs: 6,865 - Follows: 6,868 - Updated: 1/3 - Published: 9/3/2009 - Harry P.
Digging for the Bones
by paganaidd reviews
Because of a student death, new measures are being taken to screen students for abuse. With Dumbledore facing an enquiry, Snape is in charge of making sure every student receives an examination. Abused!Harry. Character death. Sevitis. In answer to the "New Measures for Screening Abuse" challenge at Potions and Snitches. Yes, it is a "Snape is Harry's biological father" story.
Harry Potter - Rated: M - English - Tragedy/Drama - Chapters: 62 - Words: 212,292 - Reviews: 5527 - Favs: 5,658 - Follows: 7,192 - Updated: 11/27/2014 - Published: 2/27/2011 - Harry P., Severus S. - Complete
by ikkiichiyuu reviews
He had attained the rights to be the Master of Death, and it was his obligation to steer the fates away from destruction whilst she reaped the souls to fuel Life. (Rewrite of Rewrite. Pun intended.) ON INTERMITTENT HIATUS.
Crossover - Harry Potter & Thor - Rated: M - English - Adventure - Chapters: 17 - Words: 80,292 - Reviews: 588 - Favs: 1,486 - Follows: 1,755 - Updated: 10/12/2014 - Published: 1/6/2013 - Harry P., Loki
A Necessary Gift: A Harry Potter Story
by cosette-aimee reviews
The war drags on after Voldemort's defeat and the Order of the Phoenix is fighting a losing battle. When Harry is hit by yet another killing curse, he wakes up years in the past and in an alternate reality. As an unknown child in a foreign world, Harry has a chance to change the outcome of the war - while dealing with new magical talents, pureblood politics and Black family drama.
Harry Potter - Rated: T - English - Family/Adventure - Chapters: 23 - Words: 160,554 - Reviews: 2834 - Favs: 6,336 - Follows: 7,654 - Updated: 9/14/2014 - Published: 1/20/2011 - Harry P., Sirius B.
To Call A Place Home
by missmusicluver reviews
Harry won the war. It's a couple months afterwards, and unexpectedly, he's quite literally picked up off the face of the world and shoved into another. One where Harry Potter died a long time ago and the Potter family's still fighting a war with a Dark Lord whose ruling over the world one muggle murder at a time. They say he's their only hope. Harry just really doesn't want in.
Harry Potter - Rated: T - English - Adventure/Family - Chapters: 14 - Words: 81,373 - Reviews: 1006 - Favs: 2,277 - Follows: 3,296 - Updated: 8/6/2014 - Published: 8/31/2013 - Harry P., Sirius B., James P., Lily Evans P.
Prince of the Dark Kingdom
by Mizuni-sama reviews
Ten years ago, Voldemort created his kingdom. Now a confused young wizard stumbles into it, and carves out a destiny. AU. Nondark Harry. MentorVoldemort. VII Ch.8 In which someone is dead, wounded, or kidnapped in every scene.
Harry Potter - Rated: M - English - Drama/Adventure - Chapters: 147 - Words: 1,253,480 - Reviews: 10462 - Favs: 5,759 - Follows: 5,178 - Updated: 6/17/2014 - Published: 9/3/2007 - Harry P., Voldemort
The Hand of Fate
by Yih reviews
Gen. Harry goes back to the past to change history by stopping Tom Riddle from becoming Lord Voldemort.
Harry Potter - Rated: T - English - Chapters: 31 - Words: 43,358 - Reviews: 1540 - Favs: 1,551 - Follows: 2,091 - Updated: 5/7/2014 - Published: 5/2/2010 - Harry P., Tom R. Jr.
To Shape and Change
by Blueowl reviews
AU. Time Travel. Snape goes back in time, holding the knowledge of what is to come if he fails. No longer holding a grudge, he seeks to shape Harry into the greatest wizard of all time, starting on the day Hagrid took Harry to Diagon Alley. No Horcruxes.
Harry Potter - Rated: T - English - Adventure - Chapters: 34 - Words: 232,332 - Reviews: 7899 - Favs: 12,376 - Follows: 9,926 - Updated: 3/16/2014 - Published: 10/20/2010 - Harry P., Severus S. - Complete
by Voice of the Nephilim reviews
On the night of Halloween 1981, Harry Potter vanished for eight years, reappearing at a Muggle orphanage with no recollection of his past. The deck stacked heavily against him, Harry arrives at Hogwarts, his past the key to the present’s brewing storm.
Harry Potter - Rated: M - English - Adventure/Drama - Chapters: 30 - Words: 363,743 - Reviews: 949 - Favs: 1,190 - Follows: 1,189 - Updated: 2/14/2014 - Published: 3/1/2009 - Harry P.
Piercing the Veil
by Moirae Ma'at reviews
Harry swears he'll bring Sirius back from the Veil, even if he has to go to a new school, learn the dark arts, make deals with other-worldly beings, and raise the dead. Warring Minds, Book 1. Slash.
Harry Potter - Rated: M - English - Adventure/Fantasy - Chapters: 11 - Words: 107,134 - Reviews: 416 - Favs: 985 - Follows: 1,411 - Updated: 12/27/2012 - Published: 6/24/2010 - Harry P., OC
The love accident
by brainstorm1001 reviews
Sequel to 'The cave incident'. Harry Potter and Lord Voldemort must learn to work together to prevent eradication of the whole British wizarding community. But the outcome of their cooperation might not be what they expected. HPLV. Drama, humor, romance
Harry Potter - Rated: M - English - Drama/Romance - Chapters: 21 - Words: 210,069 - Reviews: 783 - Favs: 584 - Follows: 373 - Updated: 8/14/2012 - Published: 9/7/2010 - Harry P., Voldemort - Complete
by Osireia reviews
DEAD. Harry is thrown into a world where purebloods are condemned, Tom Riddle is the Boy Who Lived, and the Dark Lord is someone he'd never suspect. Will his emerging abilities be enough? Should he support Riddle - or the Dark Lord? No slash.
Harry Potter - Rated: T - English - Adventure/Friendship - Chapters: 20 - Words: 164,771 - Reviews: 969 - Favs: 1,346 - Follows: 1,448 - Updated: 7/18/2012 - Published: 6/23/2008 - Harry P., Tom R. Jr. - Complete
by Toki Mirage reviews
Being a gay Hero hunted by a crazy Dark Lord with delusions of immortality, a barmy old Headmaster who thinks it's his job to save the world, and the odd vampire trolling through the halls at night looking for a midnight snack isn't easy. Just ask Harry.
Harry Potter - Rated: M - English - Adventure/Suspense - Chapters: 29 - Words: 332,494 - Reviews: 4835 - Favs: 4,936 - Follows: 4,231 - Updated: 2/19/2012 - Published: 2/24/2006 - Harry P. - Complete
by RustyRed reviews
Falling through puddles and magic gone haywire are just a few of Harry's newest problems. With the Ministry falling apart and Voldemort unearthing ancient secrets, will Harry uncover the truth in time? Post-OotP.
Harry Potter - Rated: T - English - Adventure/Supernatural - Chapters: 15 - Words: 103,911 - Reviews: 896 - Favs: 1,983 - Follows: 2,191 - Updated: 2/17/2012 - Published: 9/28/2008 - Harry P.
The Unforgiving Minute
by Voice of the Nephilim reviews
Broken and defeated, the War long since lost, Harry enacts his final desperate gambit: Travel back in time to the day of the Third Task, destroy all of Voldemort's horcruxes and prevent the Dark Lord's resurrection…all within the space of twelve hours.
Harry Potter - Rated: M - English - Chapters: 10 - Words: 84,617 - Reviews: 586 - Favs: 1,546 - Follows: 1,047 - Updated: 11/5/2011 - Published: 8/20/2010 - Harry P., Ginny W. - Complete
River of Dreams
by Tajjas reviews
When Severus Snape finds a certain brat-who-lived out after curfew the year after Voldemort's return, it starts a chain of events that he wouldn't have imagined in his wildest dreams. Or nightmares.
Harry Potter - Rated: K - English - Adventure - Chapters: 52 - Words: 274,110 - Reviews: 1435 - Favs: 1,331 - Follows: 1,553 - Updated: 10/23/2011 - Published: 1/31/2006 - Severus S., Harry P.
Harry Potter and the Lords of Magic I
by Taure reviews
Massively AU. Assume nothing. Harry Potter is born into a very different world than the one in canon. A world where the Greats of history walk among mere men. A world where power is all that matters, and young Harry Potter is a commodity desired by many.
Harry Potter - Rated: M - English - Fantasy - Chapters: 6 - Words: 30,856 - Reviews: 295 - Favs: 788 - Follows: 896 - Updated: 6/30/2011 - Published: 2/17/2010 - Harry P.
Time to Spare
by EmySabath reviews
HBPcompliant rewrite of Time For Me. Voldemort has a sinister plot to catch Harry out of bounds and cast a spell to send him back two hundred years, but all does not go as planned and Harry isn't as gone as he'd thought...
Harry Potter - Rated: K+ - English - Chapters: 41 - Words: 171,869 - Reviews: 2921 - Favs: 3,807 - Follows: 2,889 - Updated: 5/3/2011 - Published: 8/17/2005 - Harry P., Draco M. - Complete
Never Say Remember
by Malora reviews
13-year-old Harry is dragged into another world where he was adopted by Snape. Where his mother is still alive. Where he can't stop feeling like a stranger. And Snape discovers that a new Potter has appeared. One who won't leave him alone. Who knows Snape's deepest secret. As both Harrys search for a way home, they begin to question what home really is.
Harry Potter - Rated: T - English - Angst/Drama - Chapters: 24 - Words: 97,933 - Reviews: 873 - Favs: 1,076 - Follows: 625 - Updated: 2/1/2011 - Published: 1/1/2008 - Harry P., Lily Evans P., Severus S., Albus D. - Complete
by paganaidd reviews
Sort of a sequel and a companion piece to Dudley's Memories. Harry is finding a healthy outlet for his "saving people thing" in the form of one damaged little boy. In doing so he finds himself thinking about his old teacher, quite a bit.
Harry Potter - Rated: T - English - Supernatural/Angst - Chapters: 32 - Words: 69,689 - Reviews: 1051 - Favs: 1,916 - Follows: 717 - Updated: 2/1/2011 - Published: 9/16/2010 - Harry P., Severus S. - Complete
Harry Potter and the World that Waits
by dellacouer reviews
A shell shocked but triumphant Harry Potter decides to leave his world behind for another. Someone should have told him that AUs can be really, really different. HP/ X-Men crossover.
Crossover - Harry Potter & X-Men: The Movie - Rated: T - English - Supernatural/Adventure - Chapters: 12 - Words: 122,880 - Reviews: 2722 - Favs: 5,714 - Follows: 6,661 - Updated: 1/20/2011 - Published: 7/11/2008 - Harry P.
The Strength of Family
by Foria reviews
AU: Harry Potter was always a lonely child who received no love from his family. What if, instead of being an only child he had a younger sister to take care of and love? How different would the Potter-verse be from that one little change?
Harry Potter - Rated: T - English - Family/Adventure - Chapters: 21 - Words: 144,036 - Reviews: 904 - Favs: 896 - Follows: 1,096 - Updated: 1/13/2011 - Published: 1/26/2009 - Harry P., Ginny W.
Walking in Shadows
by ickleiss reviews
Kind of Severitus challenge but this time Voldemort finds out about the relationship between Harry and Snape, forcing the two of them into a dangerous charade, where the truth has to be kept from the side of the light at all costs. Post HBP
Harry Potter - Rated: M - English - Angst - Chapters: 21 - Words: 84,892 - Reviews: 270 - Favs: 157 - Follows: 265 - Updated: 1/4/2011 - Published: 8/29/2005 - Harry P., Severus S.
by DobbyElfLord reviews
Sequel to Altered Destinies: Harry returns to his original time to find the wizarding world changed due to his actions in the past. Not only does his family and friends await, but so does a new prophecy. Reading AD first is required to understand!
Harry Potter - Rated: T - English - Suspense/Mystery - Chapters: 19 - Words: 147,171 - Reviews: 2004 - Favs: 2,664 - Follows: 2,942 - Updated: 11/8/2010 - Published: 3/23/2008 - Harry P., Tom R. Jr.
Isis's Bane: A New Home
by althor42 reviews
Alternate continuation of Isis' Bane. Harry returns to Earth with SG-1 and finds a place to fit in. First chapter begins with an alternate of the last chapter of Isis' Bane.
Crossover - Stargate: SG-1 & Harry Potter - Rated: M - English - Sci-Fi/Angst - Chapters: 18 - Words: 125,172 - Reviews: 730 - Favs: 1,143 - Follows: 971 - Updated: 10/14/2010 - Published: 9/28/2008 - J. O'Neill, Harry P. - Complete
Un Coeur Gris
by Tsurai Shi reviews
DISCONTINUED. Sequel to Noir et blanc.
Harry Potter - Rated: T - English - Drama/Romance - Chapters: 18 - Words: 56,887 - Reviews: 1988 - Favs: 2,156 - Follows: 2,670 - Updated: 6/22/2010 - Published: 5/31/2007 - [Harry P., Voldemort] - Complete
by Kurinoone reviews
Harry gets a chance to see what his life would have been like if Wormtail had betrayed them fully that Halloween night. He swaps his universe for the cannon universe. Canon compliant up until the fourth book. Book Three of the Dark Prince Trilogy. H/G AU
Harry Potter - Rated: T - English - Angst/Adventure - Chapters: 45 - Words: 418,604 - Reviews: 4882 - Favs: 2,321 - Follows: 1,223 - Updated: 1/19/2010 - Published: 12/21/2007 - Harry P., James P. - Complete
Harry's New Home
by kbinnz reviews
One lonely little boy. One snarky, grumpy git. When the safety of one was entrusted to the other, everyone knew this was not going to turn out well... Or was it? AU, sequel to "Harry's First Detention". OVER FOUR MILLION HITS!
Harry Potter - Rated: T - English - Chapters: 64 - Words: 318,389 - Reviews: 10594 - Favs: 5,894 - Follows: 2,267 - Updated: 10/16/2009 - Published: 7/31/2008 - Harry P., Severus S. - Complete
It Isn't Easy Being a Hufflepuff
by trillium248 reviews
After Voldemort is defeated, Harry finds himself pulled into another dimension where Neville is the bwl and Harry is a… Hufflepuff? AU.
Harry Potter - Rated: T - English - Adventure - Chapters: 21 - Words: 85,820 - Reviews: 965 - Favs: 1,994 - Follows: 2,398 - Updated: 9/19/2009 - Published: 8/19/2008 - Harry P.
And Still Can't Stop Hoping
by Samantha Aswad reviews
AU: Neville was named the Boywholived. Harry’s mother died giving birth to him and his father blames him for her death. And if you already have an heir in your family who really needs someone like Lucas Harry Potter?
Harry Potter - Rated: T - English - Drama/Tragedy - Chapters: 24 - Words: 72,656 - Reviews: 2900 - Favs: 2,449 - Follows: 3,288 - Updated: 1/9/2009 - Published: 5/30/2006 - Harry P., Severus S.
Ripples in Time
by padfootsrevenger reviews
Harry is victorious and Voldemort is gone, but not all is as it should be. Thrown into the past Harry takes on the role of James Potter’s long lost cousin and attempts to do the one thing Hermione always warned him about. Is this a second chance or curse?
Harry Potter - Rated: K+ - English - Chapters: 26 - Words: 94,782 - Reviews: 1937 - Favs: 2,685 - Follows: 3,175 - Updated: 8/9/2008 - Published: 9/7/2006 - Harry P.
Harry Potter & the Second Chance
by azerjaban reviews
STORY BEING CURRENTLY RE-EDITED (March 2014). Harry Potter, sick of fighting and loosing everyone he has ever cared a twist of Fate, finds himself in a world where he died as a baby,his parents alive and is Voldemort really gone? Post HBP, Disregards DH.
Harry Potter - Rated: T - English - Drama/Family - Chapters: 11 - Words: 48,912 - Reviews: 557 - Favs: 571 - Follows: 994 - Updated: 7/2/2008 - Published: 4/2/2006 - Harry P., James P., Lily Evans P., Albus D.
The Marriage Stone
by Josephine Darcy reviews
SSHP. To avoid the machinations of the Ministry, Harry must marry a reluctant Severus Snape. But marriage to Snape is only the beginning of Harry's problems. Voldemort has returned, and before too long Harry's marriage may determine the world's fate.
Harry Potter - Rated: M - English - Romance/Adventure - Chapters: 77 - Words: 381,147 - Reviews: 13549 - Favs: 7,764 - Follows: 6,453 - Updated: 3/30/2008 - Published: 4/9/2007 - Harry P., Severus S.
A Stranger in the Promised Land
by serpant-sorcerer reviews
PART II: Harry Potter thought that he had found a way home but something went wrong. Now he finds himself trapped in another dimension, in which someone else was cursed with the famous scar, and Tom Riddle never became the Dark Lord.
Harry Potter - Rated: M - English - Mystery/Adventure - Chapters: 4 - Words: 109,659 - Reviews: 535 - Favs: 1,255 - Follows: 1,415 - Updated: 1/16/2008 - Published: 6/14/2007 - Harry P., Tom R. Jr.
A Part of Me
by Kurinoone reviews
Harry tries to adjust to his new life without Voldemort. But sometimes your past refuses to stay in the past. Book Two of the Dark Prince Trilogy. H/G AU
Harry Potter - Rated: T - English - Angst/Adventure - Chapters: 44 - Words: 271,565 - Reviews: 5277 - Favs: 2,451 - Follows: 817 - Updated: 12/15/2007 - Published: 1/14/2007 - Harry P., James P. - Complete
Fire on Darkness
by Asrai reviews
What if...? Or: This is here. This isn't. Slash:HPSS
Harry Potter - Rated: T - English - Adventure - Chapters: 20 - Words: 56,263 - Reviews: 106 - Favs: 114 - Follows: 39 - Updated: 9/16/2007 - Published: 4/24/2007 - Harry P., Severus S. - Complete
by DobbyElfLord reviews
DONE! Harry has defeated Voldemort, but it was a costly victory. Aberforth Dumbledore presents a plan to go back and kill the infant Riddle, but Harry will have to stay there 10 years. Can Harry alter the wizarding world's destiny? WWII and Grindelwald
Harry Potter - Rated: T - English - Supernatural/Suspense - Chapters: 39 - Words: 289,078 - Reviews: 3485 - Favs: 5,449 - Follows: 1,933 - Updated: 9/1/2007 - Published: 9/15/2006 - Harry P., Tom R. Jr. - Complete
A Stranger in an Unholy Land
by serpant-sorcerer reviews
PART I: Days before his 6th year, Harry Potter is sucked into another universe by forces not of this world. Dazed and confused, Harry finds himself in a world where his parents are alive, where Voldemort has never fallen and he is Voldemort's key enforcer
Harry Potter - Rated: M - English - Adventure/Mystery - Chapters: 17 - Words: 470,388 - Reviews: 1615 - Favs: 3,349 - Follows: 1,078 - Updated: 4/25/2007 - Published: 7/14/2004 - Harry P., Voldemort - Complete
The Darkness Within
by Kurinoone reviews
What if Wormtail hadn't told Lord Voldemort the Potters hideout. What if he took Harry straight to him instead? A Dark Harry fanfic. AU Mild HG
Harry Potter - Rated: T - English - Adventure/Angst - Chapters: 65 - Words: 364,868 - Reviews: 7043 - Favs: 6,578 - Follows: 1,885 - Updated: 12/24/2006 - Published: 4/26/2006 - Harry P., Voldemort - Complete
by Gillian Middleton reviews
Against his better judgement Severus Snape let a part of himself be used in a spell six years earlier. Now the consequences of his actions cannot be avoided any longer and Snape finds himself the father of a five year old boy-Harry Potter! Complete.
Harry Potter - Rated: K - English - Chapters: 2 - Words: 26,191 - Reviews: 430 - Favs: 1,889 - Follows: 259 - Published: 7/14/2004 - Severus S., Harry P. - Complete
by Marz1 reviews
AU third year. I must have a sign on my back that says psycho paths please attack me. I would not put it beyond Dudley to afix such a sign to me, but I doubt he could spell it accurately enough for a psycho to understand.
Harry Potter - Rated: T - English - Adventure/Drama - Chapters: 27 - Words: 80,802 - Reviews: 1378 - Favs: 1,057 - Follows: 190 - Updated: 5/30/2004 - Published: 12/2/2003 - Harry P., Sirius B. - Complete