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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: 26695 - Favs: 15,329 - Follows: 14,146 - Updated: 8h ago - Published: 2/28/2010 - Hermione G., Tom R. Jr.
Following the Phoenix
by hezzel reviews
A single-/dual-point-of-departure spinoff from Less Wrong's brilliant story "Harry Potter and the Methods of Rationality", branching away in Chapter 81. Hermione is sent to Azkaban, but Harry is not about to give up. Unfortunately, it doesn't look like his enemy is about to leave things alone either.
Harry Potter - Rated: T - English - Drama/Fantasy - Chapters: 36 - Words: 248,210 - Reviews: 256 - Favs: 269 - Follows: 356 - Updated: 1/12 - Published: 8/21/2014 - Harry P., Hermione G., Albus D., Q. Quirrell - Complete
Riddle And The Ancient Contract
by HERMIT532 reviews
What if it wasn't anything the current Potters had done that saved little Harika Potter as an infant? What if the child prodigy Thomas Riddle had tweaked the horcrux spell before creating them? And what happens when they discover that nothing is exactly what it seems? FemHarry, DumbledoreBashing EXPLICIT SEX/ MENTION OF RAPE. YOU'VE BEEN WARNED.
Harry Potter - Rated: M - English - Romance - Chapters: 45 - Words: 207,772 - Reviews: 1686 - Favs: 2,482 - Follows: 2,878 - Updated: 12/30/2014 - Published: 11/29/2013 - Harry P., Tom R. Jr., Severus S., Sirius B.
by Marquis Black reviews
Some men live their whole lives at peace and are content. Others are born with an unquenchable fire and change the world forever. Inspired by the rise of Napoleon, Augustus, Nobunaga, and T'sao T'sao. Very AU.
Harry Potter - Rated: M - English - Adventure - Chapters: 42 - Words: 619,123 - Reviews: 1676 - Favs: 2,421 - Follows: 2,186 - Updated: 12/25/2014 - Published: 4/17/2010 - Harry P.
Harry Potter and the Story by Dad
by Dad9 reviews
A post HBP book seven substitute started well before DH. It is a HHr book. Ron and Ginny stay likable. I try to stay with the canon as much as possible and will eventually explain all actions and abilities. Please read the intro for more details.
Harry Potter - Rated: M - English - Adventure/Romance - Chapters: 140 - Words: 949,800 - Reviews: 2303 - Favs: 1,250 - Follows: 1,249 - Updated: 9/3/2014 - Published: 12/22/2006 - Harry P., Hermione G.
by Yanagi-wa reviews
Harry winds up in Japan and lives a completely different life from the one Dumbledore planned for him. He returns to England and ... you need to read to find out.
Harry Potter - Rated: M - English - Adventure - Chapters: 40 - Words: 362,190 - Reviews: 2036 - Favs: 3,389 - Follows: 3,097 - Updated: 6/18/2014 - Published: 7/9/2011 - Harry P. - Complete
Harry & the Mysterious Curse of the GirlWhoLived
by Lord Jeram reviews
Harry always knew that there was something unique about him. In a way, the arrival of the Hogwarts acceptance letters was almost expected... except, why are they all addressed to 'Harriet Potter?
Harry Potter - Rated: T - English - Adventure/Humor - Chapters: 15 - Words: 120,403 - Reviews: 525 - Favs: 1,174 - Follows: 1,600 - Updated: 2/24/2014 - Published: 9/22/2010 - Harry P.
Effects and Side Effects
by Pheonix Dawn reviews
Voldemort didn't like what happened at the Department of Mysteries and viewed the connection as a liability he could no longer afford. The steps he took changed Harry's life forever, and set him on the path to victory. Fem Harry. Harry.Multi.
Harry Potter - Rated: M - English - Adventure/Romance - Chapters: 34 - Words: 426,637 - Reviews: 1689 - Favs: 3,072 - Follows: 3,493 - Updated: 2/10/2014 - Published: 10/19/2008 - Harry P.
The Serpentine Subterfuge
by murkybluematter reviews
Harriett Potter survived her first year masquerading as a pureblooded boy, but sinister forces are now moving through the wizarding world, and when something sinister starts moving through Hogwarts as well, Harry and her friends are pulled into another maelstrom—whether Harry likes it or not. Book two. Alanna the Lioness take on HP.
Harry Potter - Rated: T - English - Adventure/Friendship - Chapters: 14 - Words: 338,096 - Reviews: 1122 - Favs: 692 - Follows: 506 - Updated: 12/29/2013 - Published: 6/20/2012 - Harry P., Draco M. - Complete
Princess of the Blacks
by Silently Watches reviews
Sirius searches for his goddaughter and finds her in one of the least expected and worst possible locations and lifestyles. DARK and NOT for children. fem!bisexual!Harry, minor fem!Harry/Viktor, eventual fem!Harry/Luna, powerful!Harry, James and Lily are alive, twin is BWL, year 4, less cliched than it sounds
Harry Potter - Rated: M - English - Adventure/Fantasy - Chapters: 35 - Words: 189,334 - Reviews: 1679 - Favs: 2,798 - Follows: 2,305 - Updated: 12/18/2013 - Published: 6/19/2012 - Harry P., Luna L., Viktor K., Cedric D. - Complete
by Lord Silvere reviews
Harry is a prisoner, and Bellatrix has fallen from grace. The accidental activation of Bella's treasured heirloom results in another chance for Harry. It also gives him the opportunity to make the acquaintance of the young and enigmatic Bellatrix Black as they change the course of history.
Harry Potter - Rated: T - English - Chapters: 46 - Words: 392,449 - Reviews: 6733 - Favs: 8,199 - Follows: 6,551 - Updated: 9/21/2013 - Published: 11/14/2009 - Harry P., Bellatrix L. - Complete
The Spiral Path
by wordhammer reviews
Continuing the Harry Potter story, 'Holly Evans & ...' Bi!Girl!Harry is Riddle's nemesis; having fought into adulthood, she's building a conspiracy using her own Mark- the Spiral. Bizarre, violent, sexy & complex.
Harry Potter - Rated: M - English - Suspense/Crime - Chapters: 5 - Words: 56,400 - Reviews: 65 - Favs: 201 - Follows: 277 - Updated: 7/19/2013 - Published: 3/23/2011 - Harry P., N. Tonks
by Johnsoneer reviews
Sequel to Goliath. Alek and Deryn have been doing fine in London, but something has forced them set off on a journey across war-torn Europe on the back of a new beastie. New friends, suspicious strangers, battle, war, love, loss, and all the steampunk-y goodness of the series I love. Its going to be a long one so get reading.
Leviathan series - Rated: K+ - English - Adventure/Drama - Chapters: 36 - Words: 72,998 - Reviews: 129 - Favs: 30 - Follows: 47 - Updated: 3/15/2013 - Published: 7/7/2012 - Alek F., Deryn S.
The Little Veela that Could
by Darth Drafter reviews
During the Second Task of the Tri-Wizard Tournament, Headmaster Dumbledore watches his plan for the Greater Good crumble and die. A Veela girl receives the gift of life through the blood and sacrifice of the last Potter. Gabby/Harry w/ a twist.
Harry Potter - Rated: M - English - Adventure/Friendship - Chapters: 32 - Words: 350,784 - Reviews: 1876 - Favs: 2,572 - Follows: 2,265 - Updated: 6/28/2012 - Published: 11/4/2009 - Gabrielle D., Harry P. - Complete
The Pureblood Pretense
by murkybluematter reviews
Harriett Potter dreams of going to Hogwarts, but in an AU where the school only accepts purebloods, the only way to reach her goal is to switch places with her pureblood cousin—the only problem? Her cousin is a boy. Alanna the Lioness take on HP.
Harry Potter - Rated: T - English - Adventure/Friendship - Chapters: 22 - Words: 227,596 - Reviews: 473 - Favs: 784 - Follows: 303 - Updated: 6/20/2012 - Published: 12/5/2011 - Harry P., Draco M. - Complete
Partially Kissed Hero
by Perfect Lionheart reviews
Summer before third year Harry has a life changing experience, and a close encounter with a dementor ends with him absorbing the horcrux within him. Features Harry with a backbone.
Harry Potter - Rated: T - English - Fantasy/Humor - Chapters: 103 - Words: 483,646 - Reviews: 14626 - Favs: 7,607 - Follows: 6,754 - Updated: 4/28/2012 - Published: 5/6/2008 - Harry P.
by Darth Marrs reviews
Formerly Defense for Two. Adopted from Perspicacity with permission. They thought Lockhart was a fraud. They were wrong; he was their guide into a world of danger, adventure, intrigue and other Unspeakable Things.
Harry Potter - Rated: M - English - Adventure/Fantasy - Chapters: 60 - Words: 242,047 - Reviews: 2607 - Favs: 1,984 - Follows: 1,573 - Updated: 2/25/2012 - Published: 11/13/2010 - Harry P., Ginny W. - Complete
by T3t reviews
The first time, it was an accident. The second time... well, I really should have known better. HP/Fem!TR
Harry Potter - Rated: T - English - Romance/Adventure - Chapters: 11 - Words: 40,414 - Reviews: 197 - Favs: 706 - Follows: 483 - Updated: 2/23/2012 - Published: 7/16/2011 - Harry P., Tom R. Jr. - Complete
The Chronicles of Harry Holmes
by ZenoNoKyuubi reviews
What if the Dursleys gave Harry the Sherlock Holmes books when he was a child to make sure he knew that there was no such thing as magic? What if he did everything to become just like Holmes? May seem rushed, but more coming. Sequel in the making!
Harry Potter - Rated: T - English - Adventure/Mystery - Chapters: 19 - Words: 112,160 - Reviews: 1163 - Favs: 2,453 - Follows: 1,152 - Updated: 11/8/2011 - Published: 10/23/2011 - Harry P., Neville L. - Complete
by Valzen reviews
Some think being undead provides the chance of a second life. The Cullens believe it is only a poor imitation of living. This was becoming Hermione’s third life, and it seemed that she would live in a new world every time her own falls to pieces.
Crossover - Harry Potter & Twilight - Rated: T - English - Family/Fantasy - Chapters: 34 - Words: 56,528 - Reviews: 514 - Favs: 315 - Follows: 440 - Updated: 7/11/2011 - Published: 11/29/2008 - Hermione G.
by Alicorn24 reviews
A series of short stories taking place in the same fanonverse as Luminosity and Radiance. Some of them will be comprehensible without having read the novels. Some won't. I recommend starting with the novels.
Twilight - Rated: T - English - Supernatural - Chapters: 17 - Words: 66,935 - Reviews: 93 - Favs: 56 - Follows: 42 - Updated: 7/1/2011 - Published: 3/10/2011 - Complete
by Alicorn24 reviews
Sequel to "Luminosity", narrated by Elspeth. You do not need to have read canon Twilight, but you will be very confused if you haven't read Luminosity.
Twilight - Rated: T - English - Supernatural - Chapters: 53 - Words: 234,771 - Reviews: 459 - Favs: 222 - Follows: 105 - Updated: 3/9/2011 - Published: 11/7/2010 - Complete
by Alicorn24 reviews
Luminosity is an AU reworking of the Twilight story where Bella is a rational self-knowledge junkie. Inspired by "Harry Potter and the Methods of Rationality". Requires no knowledge of or affection for Twilight canon.
Twilight - Rated: T - English - Supernatural/Romance - Chapters: 57 - Words: 223,236 - Reviews: 418 - Favs: 560 - Follows: 231 - Updated: 11/8/2010 - Published: 7/13/2010 - Bella, Edward - Complete
Diary of a Lovesick Mutant
by Phoenix Fanatic reviews
Ever wonder what it's like to be inside Fang's head? Follow Fang's diary as he attempts to tell Max he loves her in just one year, while also trying to save his neck. It's hard to be a guy...Fax. Complete.
Maximum Ride - Rated: T - English - Humor/Romance - Chapters: 62 - Words: 239,551 - Reviews: 8200 - Favs: 1,820 - Follows: 703 - Updated: 6/12/2010 - Published: 6/2/2009 - Fang, Max - Complete
Browncoat, Green Eyes
by nonjon reviews
COMPLETE. Firefly: :Harry Potter crossover Post Serenity. Two years have passed since the secret of the planet Miranda got broadcast across the whole 'verse in 2518. The crew of Serenity finally hires a new pilot, but he's a bit peculiar.
Crossover - Harry Potter & Firefly - Rated: M - English - Adventure - Chapters: 39 - Words: 298,538 - Reviews: 4154 - Favs: 5,784 - Follows: 1,544 - Updated: 11/12/2006 - Published: 3/23/2006 - Harry P., River - Complete
Feedback Loop reviews
Lily Potter was both brilliant and desperate. When Voldemort attacked, she tried something dangerous and unprecedented... Permanently and drastically modifying a child's magical core. Though she feared harming baby Harry, a risky way to give him a small chance was better than certain death at the hands of the Dark Lord. Harry's new core had some unexpected effects, though.
Harry Potter - Rated: T - English - Chapters: 9 - Words: 31,822 - Reviews: 131 - Favs: 518 - Follows: 769 - Updated: 10/9/2014 - Published: 9/8/2013 - Harry P., N. Tonks