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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: 26694 - Favs: 15,329 - Follows: 14,146 - Updated: 8h ago - Published: 2/28/2010 - Hermione G., Tom R. Jr.
Lynne's AU Ending to The Marriage Stone
by lynned0101 reviews
One fan's take on how Josephine Darcy's abandoned but wonderful story, The Marriage Stone, might have proceeded. A powerful Harry, a surprised Severus, all the others, and a really bad Voldemort!
Harry Potter - Rated: M - English - Adventure/Romance - Chapters: 66 - Words: 466,471 - Reviews: 1377 - Favs: 1,065 - Follows: 1,143 - Updated: 2/18 - Published: 5/23/2009 - Harry P., Severus S.
The Better Man
by Laume reviews
Suppose the Marauders torture hadn't driven Snape to Voldemort and he had been the better man. What would the future have looked like? Warning: may now contain DH spoilers.
Harry Potter - Rated: T - English - Drama - Chapters: 21 - Words: 78,661 - Reviews: 1805 - Favs: 2,670 - Follows: 3,347 - Updated: 1/24 - Published: 6/2/2007 - Severus S., Harry P.
Travel Secrets: Third
by E4mj reviews
Harry's now going into his 3rd year again & it's getting complicated. Sirius still escaped & Harry has to deal with Slytherin politics & some extra timetravel on top of old drama. Rescuing Sirius is the number one mission, but things keep reverting & Harry is worried he can't change a Thing. Dumbledore/Goodguys bashing. 3rd in series. Rated M coz I'm paranoid. It all belongs to Jo!
Harry Potter - Rated: T - English - Chapters: 28 - Words: 155,606 - Reviews: 1335 - Favs: 2,373 - Follows: 3,221 - Updated: 11/27/2014 - Published: 2/24/2014 - 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: 5,655 - Follows: 7,193 - Updated: 11/27/2014 - Published: 2/27/2011 - Harry P., Severus S. - Complete
Questions and Answers
by little0bird reviews
When the past and present collide with the Potter/Weasley children... A bit AU with characters' names and some pairings. Family tree now posted on my profile page. 3/16/10 -- going back and cleaning up a few things; nothing major will change.
Harry Potter - Rated: T - English - Family - Chapters: 95 - Words: 447,904 - Reviews: 4652 - Favs: 1,539 - Follows: 1,642 - Updated: 8/3/2014 - Published: 12/18/2007
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: 5,758 - Follows: 5,177 - Updated: 6/17/2014 - Published: 9/3/2007 - Harry P., Voldemort
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: 7894 - Favs: 12,377 - Follows: 9,928 - Updated: 3/16/2014 - Published: 10/20/2010 - Harry P., Severus S. - Complete
An Aunt's Love
by Emma Lipardi reviews
Harry comes home from school and Petunia is upset at the change in her nephew. Petunia decides to do what she should have been doing all along. Dumbledore had better stay away. Petunia Dursley is upset. Warnings on profile.
Harry Potter - Rated: M - English - Drama - Chapters: 71 - Words: 356,847 - Reviews: 14353 - Favs: 9,489 - Follows: 9,169 - Updated: 2/3/2014 - Published: 12/30/2004 - Harry P.
Harry Potter, Fifth Year Headmaster
by flch1cks123 reviews
Before Fudge could make Umbridge the Headmistress during Harry's fifth year, the school woke up and activated the Founder's Charter. Now Harry is the Headmaster of a school that he hasn't even graduated from! What in Merlin's name is he going to do now?
Harry Potter - Rated: K+ - English - Adventure/Friendship - Chapters: 6 - Words: 72,733 - Reviews: 872 - Favs: 2,429 - Follows: 2,928 - Updated: 12/16/2013 - Published: 7/6/2011 - Harry P.
by Dreamwriter613 reviews
AU Independent!Harry. What if from the beginning Harry saw that there was something just not right with the world around him? What if he does something about it? Unlikely allies, and unexpected inheritances abound. Probable future slash.
Harry Potter - Rated: M - English - Drama/Hurt/Comfort - Chapters: 15 - Words: 38,091 - Reviews: 264 - Favs: 512 - Follows: 845 - Updated: 8/18/2013 - Published: 8/16/2009 - Harry P.
Growing Up Black
by Elvendork Nigellus reviews
What if Harry had been rescued from the Dursleys at age six and raised as the heir of the Noble and Most Ancient, etc.? This is the story of Aries Sirius Black. AU. Part I complete. Part II in progress.
Harry Potter - Rated: T - English - Family - Chapters: 69 - Words: 234,225 - Reviews: 4140 - Favs: 5,238 - Follows: 5,411 - Updated: 4/18/2013 - Published: 11/30/2010 - Harry P., Sirius B.
On the Wings of Dragons
by Bobmin356 reviews
The Weyr prepares for the step of going public against the backdrop of heightening international tensions and increasingly complex personal issues. And is Britain really secure now that the Ministry has been conquered? Sequel to The Queen Who Fell to Earth. Harry/Hr/OCF
Crossover - Harry Potter & Dragonriders of Pern series - Rated: M - English - Drama/Sci-Fi - Chapters: 19 - Words: 365,930 - Reviews: 2130 - Favs: 2,379 - Follows: 1,752 - Updated: 4/7/2013 - Published: 6/5/2012 - Harry P. - Complete
The Unbreakable Vow
by Ash Darklighter reviews
Strange lights are seen across a deserted country lane. The wizarding world is calling him home.
Harry Potter - Rated: T - English - Drama/Romance - Chapters: 37 - Words: 264,559 - Reviews: 1658 - Favs: 1,620 - Follows: 1,847 - Updated: 2/24/2013 - Published: 8/5/2007 - Harry P., Ginny W.
The Accidental Bond
by kb0 reviews
Harry finds that his "saving people thing" is a power of its own, capable of bonding single witches to him if their life is in mortal danger, with unusual results. H/multi
Harry Potter - Rated: M - English - Drama/Adventure - Chapters: 33 - Words: 415,017 - Reviews: 3764 - Favs: 4,806 - Follows: 4,022 - Updated: 1/16/2013 - Published: 12/23/2009 - Harry P. - Complete
Trust Is A Relative Thing
by Silverfawkes reviews
What if Petunia put the blame where it belonged instead of on Harry? OOC Petunia Dursley Rating for mild language
Harry Potter - Rated: T - English - Chapters: 51 - Words: 219,068 - Reviews: 5325 - Favs: 5,412 - Follows: 6,163 - Updated: 10/16/2012 - Published: 12/31/2010 - Harry P.
A Life More Ordinary
by notevenhere reviews
Harry was left on a doorstep, Sirius was sent to Azkaban and Remus lost everyone he had ever loved. When the real traitor is captured three years later, Sirius sets out to make things right for the two people he loves the most. SB/RL
Harry Potter - Rated: T - English - Angst/Drama - Chapters: 57 - Words: 268,328 - Reviews: 1806 - Favs: 1,468 - Follows: 1,435 - Updated: 9/20/2012 - Published: 8/17/2009 - Harry P., Sirius B. - Complete
For Whom the Bell Tolls
by nefieslab reviews
AU fifth year. After saving Dudley from the dementors, the ministry letter arrives to order his wand snapped. Dumbledore's letter doesn't arrive. Harry/Daphne/Susan. Rating may change. Powerful!Happy!Independant!Harry.
Harry Potter - Rated: T - English - Romance/Adventure - Chapters: 17 - Words: 135,554 - Reviews: 1560 - Favs: 3,682 - Follows: 4,445 - Updated: 7/2/2012 - Published: 1/15/2011 - Harry P., Daphne G.
by Evandar reviews
Sequel to Serpens Armarem! The Dark Lord has risen, and Harry soon finds out that his absence from Hogwarts doesn't excuse him from the coming war, while back at school Neville realises that not all evil takes the form of Death Eaters. AU, slash - NOW DISCONTINUED! See profile for notes.
Harry Potter - Rated: M - English - Adventure - Chapters: 10 - Words: 26,783 - Reviews: 2029 - Favs: 4,243 - Follows: 5,712 - Updated: 6/18/2012 - Published: 7/21/2009 - Harry P., Neville L.
by SensiblyTainted reviews
How much of what you are depends on your environment? If everything changed, who would you become? Harry Potter is about to find out. If it would save everything he loved, could he become a Dark Lord?
Harry Potter - Rated: M - English - Drama/Angst - Chapters: 26 - Words: 189,905 - Reviews: 1177 - Favs: 967 - Follows: 1,135 - Updated: 4/12/2012 - Published: 6/7/2009 - Harry P., Severus S.
Harry Potter Witch
by Silverfawkes reviews
AU started as Parody of the turn Harry into girl Wizengamot gets stupid. Wrote itself in another direction. first chapt is general fiction no pairing after that is pure romance HP/OC Rating for some language.
Harry Potter - Rated: T - English - Romance - Chapters: 6 - Words: 52,816 - Reviews: 316 - Favs: 669 - Follows: 411 - Updated: 4/10/2012 - Published: 1/3/2012 - 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: 4,935 - Follows: 4,232 - Updated: 2/19/2012 - Published: 2/24/2006 - Harry P. - Complete
Harry Potter Superhero
by ckil reviews
Harry Potter wanted to be a superhero. He really did. This is his life as he learned to harness the power and change the world.
Harry Potter - Rated: T - English - Adventure/Mystery - Chapters: 7 - Words: 34,935 - Reviews: 318 - Favs: 910 - Follows: 1,061 - Updated: 2/7/2012 - Published: 3/14/2010 - Harry P.
30 Minutes II: The Gathering Storm
by Radaslab reviews
Harry & Co. enter Hogwarts. Dumbledore is not faced with a pawn. Voldemort is not faced with fertile ground. The world is about to change as war and revolution are in the air. Sequel.
Harry Potter - Rated: T - English - Adventure/Friendship - Chapters: 16 - Words: 142,208 - Reviews: 1871 - Favs: 2,491 - Follows: 3,069 - Updated: 10/16/2011 - Published: 10/31/2009 - Harry P., Hermione G.
The Best Revenge
by Arsinoe de Blassenville reviews
AU. Yes, the old Snape retrieves Harry from the Dursleys formula. I just had to write one. Everything changes, because the best revenge is living well. T for Mentor Snape's occasional naughty language. Supportive Minerva. Over three million hits!
Harry Potter - Rated: T - English - Drama/Adventure - Chapters: 47 - Words: 213,669 - Reviews: 5843 - Favs: 5,978 - Follows: 3,364 - Updated: 9/10/2011 - Published: 3/9/2009 - Harry P., Severus S. - Complete
Harry Potter and the Male Veela
by marciejackson reviews
Harry's life is going through a major overhaul - from changing homes to finding a family, this summer is looking to be very different from the last one. But why does he keep waking up all achy in the mornings? Long lead up to the action - set up for part4
Harry Potter - Rated: T - English - Drama - Chapters: 4 - Words: 65,275 - Reviews: 298 - Favs: 1,092 - Follows: 1,459 - Updated: 2/22/2011 - Published: 6/14/2010 - Harry P., Fleur D.
by sbmcneil reviews
When Ron and Harry got into their fight while out hunting Horcruxes, Hermione ran after Ron leading to some unintended consequences. Even with the best of intentions, things can still go wrong.
Harry Potter - Rated: M - English - Romance/Drama - Chapters: 25 - Words: 93,627 - Reviews: 820 - Favs: 1,483 - Follows: 658 - Updated: 2/20/2011 - Published: 10/1/2010 - [Harry P., Ginny W.] Ron W., Hermione G. - Complete
by Silverfawkes reviews
AU Sirius took Harry that night and left. What happened after that is my story. ?able Dumbledore Sirius OOC Rating for occasional language.
Harry Potter - Rated: T - English - Family - Chapters: 68 - Words: 179,902 - Reviews: 1777 - Favs: 2,389 - Follows: 1,492 - Updated: 2/14/2011 - Published: 2/1/2010 - Sirius B., Harry P. - Complete
Filling the Void
by goldencompass reviews
Sometimes getting what you want is terrifying. Can Severus and Harry manage after the roller coaster that was first year? Sequel to Reading the Signs.
Harry Potter - Rated: K+ - English - Hurt/Comfort/Angst - Chapters: 15 - Words: 39,002 - Reviews: 875 - Favs: 945 - Follows: 1,434 - Updated: 2/13/2011 - Published: 7/7/2008 - Harry P., Severus S.
His Own Man
by Crunchysunrises reviews
In the station between Life and Death Harry makes a different choice. Now he's eleven again, no one is turning out the same way, the Sorting Hat won't Sort him, the Malfoys are looking at him strangely, and - it's time for another visit.
Harry Potter - Rated: T - English - Adventure/Friendship - Chapters: 31 - Words: 147,481 - Reviews: 4736 - Favs: 9,847 - Follows: 11,326 - Updated: 1/2/2011 - Published: 10/19/2009 - Harry P.
Harry Prongs Tatum
by Silverfawkes reviews
on hiatus AU They left him on a doorstep and he wandered away.Features Independent Stubborn Harry and pokes fun at the foibles of the magical world.Rating for occasional language.
Harry Potter - Rated: T - English - Chapters: 18 - Words: 88,802 - Reviews: 1863 - Favs: 3,645 - Follows: 4,251 - Updated: 12/22/2010 - Published: 5/28/2010 - Harry P.
Harry Potter and the Quantum Leap
by Seel'vor reviews
Harry Potter won the Second Blood War and defeated his enemies... and was left with nothing. Decades later, he contributes to the creation of a revolutionary new piece of technology and destroys the future in order to rewrite his own past...
Harry Potter - Rated: M - English - Adventure/Romance - Chapters: 42 - Words: 274,521 - Reviews: 4518 - Favs: 6,054 - Follows: 6,205 - Updated: 10/28/2010 - Published: 12/17/2007 - Harry P., Hermione G.
The First Day
by little0bird reviews
The first year after the battle.
Harry Potter - Rated: T - English - Hurt/Comfort/Romance - Chapters: 55 - Words: 251,033 - Reviews: 3351 - Favs: 2,187 - Follows: 1,158 - Updated: 8/11/2010 - Published: 7/2/2008 - Harry P., Ginny W. - Complete
Harry Potter: Dark Memories
by Blueowl reviews
Voldemort didn't just give Harry some of his powers that night. He gave him all of his memories. With them, his allies and friends, Harry shall change the Wizarding World like no one ever before. LightHarry. GoodDumbledore. Chaotic magic. COMPLETE!
Harry Potter - Rated: T - English - Adventure - Chapters: 57 - Words: 301,128 - Reviews: 4171 - Favs: 5,958 - Follows: 3,074 - Updated: 7/14/2010 - Published: 7/13/2007 - Harry P. - Complete
by GenkaiFan reviews
Harry has had enough of seeing his reputation shredded in the Daily Prophet and decides to do something about it. Only he decides to embrace his Slytherin side to rectify matters.
Harry Potter - Rated: T - English - Drama/Humor - Chapters: 32 - Words: 74,506 - Reviews: 7957 - Favs: 14,443 - Follows: 6,258 - Updated: 6/21/2010 - Published: 12/3/2009 - Harry P. - Complete
30 Minutes That Changed Everything
by Radaslab reviews
AU. Year 2148: Gobal Population: 1. He made a mistake 150 years ago or so and now the human race no longer exists. For a century or so, he has sought a way to fix it all. Can he, or is the end of the world inevitable?
Harry Potter - Rated: T - English - Adventure/Friendship - Chapters: 55 - Words: 352,127 - Reviews: 3111 - Favs: 3,388 - Follows: 1,572 - Updated: 10/29/2009 - Published: 6/29/2009 - Harry P., Hermione G. - 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
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: 7,763 - Follows: 6,450 - Updated: 3/30/2008 - Published: 4/9/2007 - Harry P., Severus S.