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Harry Potter and the Natural 20 by
Sir Poley reviews
Milo, a genre-savvy D&D Wizard and Adventurer Extraordinaire is forced to attend Hogwarts, and soon finds himself plunged into a new adventure of magic, mad old Wizards, metagaming, misunderstandings, and munchkinry. Updates monthly.
Crossover - Harry Potter & Dungeons and Dragons - Rated: T - English - Chapters: 74 - Words: 314,214 - Reviews: 6674 - Favs: 6,845 - Follows: 7,717 - Updated: 8/2/2018 - Published: 5/7/2012
Lady Archimedes by
White Squirrel reviews
Sequel to The Arithmancer. Years 5-7. Armed with a N.E.W.T. in Arithmancy after Voldemort's return, Hermione takes spellcrafting to new heights and must push the bounds of magic itself to help Harry defeat his enemy once and for all.
Harry Potter - Rated: T - English - Chapters: 82 - Words: 597,359 - Reviews: 5653 - Favs: 4,526 - Follows: 4,774 - Updated: 7/7/2018 - Published: 8/22/2015 - Harry P., Hermione G., George W., Ginny W. - Complete
The Well Groomed Mind by
Lady Khali reviews
On Halloween 1994, Harry learns his mind isn't his own. On Samhain morn, he vows to question everything. Armed with logic and an unlikely ally, Harry makes a last ditch bid to reclaim his life. The goal: survive at all costs.
Harry Potter - Rated: T - English - Drama - Chapters: 30 - Words: 193,050 - Reviews: 4284 - Favs: 10,047 - Follows: 11,046 - Updated: 12/30/2017 - Published: 5/29/2012 - Harry P.
The Philosopher's Red Herring by
White Squirrel reviews
At the end of first year, Harry gets an unexpected visitor with some even more unexpected news, and a new plan for his future. UP FOR ADOPTION.
Harry Potter - Rated: K+ - English - Humor - Chapters: 2 - Words: 7,326 - Reviews: 202 - Favs: 770 - Follows: 808 - Updated: 5/17/2017 - Published: 4/16/2015 - Harry P., Nicolas F.
Draco Malfoy and the Practice of Rationality by
taogaming reviews
(Continuation of Harry Potter and the Methods of Rationality by Less Wrong) Still reeling from Lucius' Death and Narcissa's rebirth, Draco struggles to find his place in a changing Hogwarts and learns a dark secret of his new room-mate: Harry James Potter-Evans-Verres.
Harry Potter - Rated: T - English - Drama/Humor - Chapters: 65 - Words: 194,982 - Reviews: 221 - Favs: 278 - Follows: 335 - Updated: 9/4/2016 - Published: 5/2/2015 - Harry P., Hermione G., Draco M. - Complete
The Accidental Animagus by
White Squirrel reviews
Harry escapes the Dursleys with a unique bout of accidental magic and eventually winds up at the Grangers' house. Now, he has what he always wanted: a loving family, and he'll need their help to take on the magical world and vanquish the dark lord who has pursued him from birth. Years 1-4. Sequel posted.
Harry Potter - Rated: T - English - Chapters: 112 - Words: 697,191 - Reviews: 5018 - Favs: 8,707 - Follows: 7,513 - Updated: 7/30/2016 - Published: 11/20/2013 - Harry P., Hermione G. - Complete
Petrification Proliferation by
White Squirrel reviews
What would have been the appropriate response to a creature that can kill with a look being set loose in the only magical school in Britain? It would have been a lot more than a pat on the head from Dumbledore and a mug of hot cocoa.
Harry Potter - Rated: K+ - English - Chapters: 7 - Words: 34,020 - Reviews: 1158 - Favs: 6,414 - Follows: 4,933 - Updated: 5/29/2016 - Published: 5/22/2015 - Harry P., Amelia B. - Complete
Significant Digits by
adeebus reviews
(Continuation of Harry Potter and the Methods of Rationality) It's easy to make big plans and ask big questions, but harder to follow them through. Find out what happens to Harry Potter-Evans-Verres, Hermione, Draco, and everyone else once they grow into their roles as leaders, leave the shelter of Hogwarts, and venture out into a wider world. Permanent home: anarchyishyperbole com
Harry Potter - Rated: T - English - Mystery/Adventure - Chapters: 58 - Words: 298,709 - Reviews: 276 - Favs: 560 - Follows: 625 - Updated: 5/16/2016 - Published: 4/9/2015 - Harry P., Hermione G., Draco M., Voldemort - Complete
Magicks of the Arcane by
Eilyfe reviews
Sometimes, all it takes to rise to greatness is a helping hand and the incentive to survive. Thrust between giants Harry has no choice but become one himself if he wants to keep on breathing. He might've found a way, but life's never that easy. Clock's ticking, Harry. Learn fast now.
Harry Potter - Rated: M - English - Adventure - Chapters: 40 - Words: 285,866 - Reviews: 2183 - Favs: 6,687 - Follows: 5,557 - Updated: 1/28/2016 - Published: 7/9/2012 - Harry P., Albus D. - Complete
Instruments of Destruction by
alexanderwales reviews
Admiral Tian Jerjerrod tackles the impossible task of building the second Death Star.
Star Wars - Rated: T - English - Sci-Fi/Suspense - Chapters: 1 - Words: 4,321 - Reviews: 55 - Favs: 312 - Follows: 118 - Published: 12/23/2015 - Complete
If Looks Could Kill by
questionablequotation reviews
ONE-SHOT: After Arthur Weasley nearly dies at the Ministry, Harry wonders why Voldemort's snake isn't something more exotic...really, no self-respecting Parseltongue should limit himself to something as mundane as a regular snake. In which Harry makes use of what he learned in Care of Magical Creatures, Kreacher is forced to cooperate, and the Chamber hides a new Secret..
Harry Potter - Rated: T - English - Chapters: 1 - Words: 17,243 - Reviews: 401 - Favs: 4,947 - Follows: 1,465 - Published: 10/21/2015 - Complete
A Competent Staff by
CharmedArtist reviews
How would that first Halloween have gone if the Hogwarts staff were actually competent?
Harry Potter - Rated: K - English - Adventure/Parody - Chapters: 1 - Words: 1,669 - Reviews: 21 - Favs: 97 - Follows: 29 - Published: 9/9/2015 - Complete
Minds, Names and Faces by
ShutUpAndCalculate reviews
An AU/Continuation recursive fanfic of the excellent "Harry Potter and the Methods of Rationality". Harry James Potter-Evans-Verres, the Boy-Who-Lived, General Chaos, etc., has had a rather busy year. With the term drawing to a close, Harry starts to discover the truth behind the enigmatic Defence Professor, Quirinus Quirrell.
Harry Potter - Rated: T - English - Drama/Humor - Chapters: 12 - Words: 29,718 - Reviews: 64 - Favs: 132 - Follows: 218 - Updated: 8/25/2015 - Published: 3/31/2015
The Arithmancer by
White Squirrel reviews
Hermione grows up as a maths whiz instead of a bookworm and tests into Arithmancy in her first year. With the help of her friends and Professor Vector, she puts her superhuman spellcrafting skills to good use in the fight against Voldemort. Years 1-4. Sequel posted.
Harry Potter - Rated: T - English - Chapters: 84 - Words: 529,133 - Reviews: 4710 - Favs: 6,129 - Follows: 4,126 - Updated: 8/22/2015 - Published: 1/31/2014 - Harry P., Ron W., Hermione G., S. Vector - Complete
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: 37 - Words: 260,387 - Reviews: 392 - Favs: 568 - Follows: 495 - Updated: 8/21/2015 - Published: 8/21/2014 - Harry P., Hermione G., Albus D., Q. Quirrell - Complete
HPMoR: The Missing (but Necessary) Chapters by
qbsmd reviews
An extension of the universe of "Harry Potter and the Methods of Rationality". Includes scenes that should have been but weren't. They contribute nothing to the plot or explaining the universe, but answer important questions that may otherwise never be answered.
Harry Potter - Rated: K - English - Fantasy/Humor - Chapters: 4 - Words: 15,736 - Reviews: 30 - Favs: 56 - Follows: 78 - Updated: 6/9/2015 - Published: 12/17/2014
Harry Potter and the Power of Paranoia by
arekay reviews
The events at the end of the Triwizard Tournament have left Harry feeling just a little bit paranoid.
Harry Potter - Rated: T - English - Humor - Chapters: 23 - Words: 103,719 - Reviews: 4307 - Favs: 9,093 - Follows: 6,939 - Updated: 3/31/2015 - Published: 6/26/2012 - Harry P. - Complete
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... COMPLETE.
Harry Potter - Rated: T - English - Drama/Humor - Chapters: 122 - Words: 661,619 - Reviews: 35603 - Favs: 26,642 - Follows: 19,628 - Updated: 3/14/2015 - Published: 2/28/2010 - Harry P., Hermione G. - Complete
Heap Coals of Fire on His Head by
White Squirrel reviews
One-shot. After losing the war, being held prisoner by the Death Eaters, seeing her friends' lives ruined, and being sold to the highest bidder, Hermione finally embraces her Slytherin side and finds a way to take control of her life again.
Harry Potter - Rated: M - English - Chapters: 1 - Words: 7,200 - Reviews: 117 - Favs: 328 - Follows: 110 - Published: 2/26/2015 - Hermione G., Draco M. - Complete
A Sorting Like No Other by
Stargon1 reviews
The Sorting Hat (or Brian to his friends) has had enough of being told by Albus Too-Many-Names Dumbledore exactly how certain new students should be sorted. For once, he's going to take matters into his own, um, hands? The incoming class of 1991 isn't going to know what hit them. Get ready for a Sorting like no other! One Shot.
Harry Potter - Rated: K - English - Chapters: 1 - Words: 8,845 - Reviews: 251 - Favs: 2,167 - Follows: 727 - Published: 1/29/2015 - Sorting Hat - Complete
Firebird's Fury: Book III of the Firebird Trilogy by
Darth Marrs reviews
They had a plan, formulated from before they were even born. That plan died. From its ashes rises a Harry Potter no longer willing, or able, to let others fight his battles for him. Outgunned, outclassed, outmatched, nonetheless Harry will take up the sword to change not only Britain, but the world.
Harry Potter - Rated: M - English - Drama/Fantasy - Chapters: 36 - Words: 168,226 - Reviews: 1885 - Favs: 2,442 - Follows: 1,637 - Updated: 1/24/2015 - Published: 5/24/2014 - Harry P., Luna L. - Complete
Mass Production by
Andrius reviews
The power Voldemort knows not turns out to be something unexpected. One-shot, quite AU.
Harry Potter - Rated: M - English - Chapters: 1 - Words: 3,333 - Reviews: 47 - Favs: 538 - Follows: 168 - Published: 8/20/2014 - Harry P., Hermione G. - Complete
Forging the Sword by
Myst Shadow reviews
::Year 2 Divergence:: What does it take, to reshape a child? And if reshaped, what then is formed? Down in the Chamber, a choice is made. (Harry's Gryffindor traits were always so much scarier than other peoples'.)
Harry Potter - Rated: T - English - Adventure - Chapters: 15 - Words: 152,578 - Reviews: 3263 - Favs: 8,853 - Follows: 10,440 - Updated: 8/19/2014 - Published: 5/26/2007 - Harry P., Ron W., Hermione G.
The Metropolitan Man by
alexanderwales reviews
The year is 1934, and Superman has arrived in Metropolis. Features Lex Luthor as the villain protagonist as he comes to grips with the arrival of an alien god. Occasional point-of-view chapters/sections featuring Lois Lane. Takes place outside any established comics continuity. Complete.
Superman - Rated: M - English - Mystery/Adventure - Chapters: 13 - Words: 80,698 - Reviews: 573 - Favs: 1,330 - Follows: 788 - Updated: 7/25/2014 - Published: 5/18/2014 - L. Luthor, Lois L., Clark K./Kal-El/Superman - Complete
Firebird's Song: Book II of the Firebird Trilogy by
Darth Marrs reviews
Hard times lead to hard choices. What's more important? Freedom, or fate? Love, or death? Harry Potter stands on the edge of a precipice, and he is not sure if the right move is to turn and fight, or fall.
Harry Potter - Rated: M - English - Fantasy/Drama - Chapters: 36 - Words: 153,289 - Reviews: 2137 - Favs: 2,889 - Follows: 2,164 - Updated: 5/17/2014 - Published: 8/31/2013 - Harry P., Luna L. - Complete
Wait, What? by
Publicola reviews
Points of divergence in the Harry Potter universe. Those moments where someone really ought to have taken a step back and asked, "Wait, what?" An ongoing collection of one-shots. Episode 16: Why I Like You.
Harry Potter - Rated: T - English - Chapters: 16 - Words: 31,551 - Reviews: 1355 - Favs: 1,933 - Follows: 1,799 - Updated: 4/6/2014 - Published: 7/9/2012 - Harry P., Ron W., Hermione G., Albus D.
Serial Killers in Training by
Cheeky-Chick1only reviews
"Professor why are you teaching us how to get rid of dead bodies?"
Harry Potter - Rated: K - English - Humor - Chapters: 1 - Words: 422 - Reviews: 34 - Favs: 325 - Follows: 106 - Published: 3/20/2014 - Harry P. - Complete
The Assassin Wore White by
apAidan reviews
In canon, healers and mediwitches were seemingly spared from the predations of the Death Eaters during both Blood Wars. St. Mungo's would have been a very soft target, but it stood inviolate. One patient was attacked, but the hospital and it's staff were spared. The question is, why? What could have kept mad killers in check? As with a great many other things, Poppy knew.
Harry Potter - Rated: T - English - Drama/Angst - Chapters: 1 - Words: 9,434 - Reviews: 145 - Favs: 1,423 - Follows: 308 - Published: 1/31/2014 - Narcissa M., Tom R. Jr., OC, Poppy P. - Complete
Honestly, Harry! by
AvalonianDream reviews
Harry and Hermione exploit various aspects of magic as defined in fanfiction to achieve tremendous succes in stupidly easy ways.
Harry Potter - Rated: K+ - English - Humor/Parody - Chapters: 3 - Words: 5,804 - Reviews: 191 - Favs: 1,627 - Follows: 1,323 - Updated: 1/12/2014 - Published: 12/5/2013 - Harry P., Hermione G.
Branches on the Tree of Time by
alexanderwales reviews
Kyle Reese has traveled backwards in time, not to save Sarah Connor, but to help her rewrite the faulty utility function of Skynet. Together, it's possible that they might avert Judgment Day and save the world from nuclear Armageddon - and hopefully create a utopia ruled over by an AI god in the process. Fully completed. Diverges wildly from canon.
Terminator - Rated: M - English - Adventure/Sci-Fi - Chapters: 17 - Words: 30,847 - Reviews: 129 - Favs: 573 - Follows: 247 - Updated: 12/12/2013 - Published: 9/3/2013 - Kyle Reese, Sarah Connor, The Terminator, Skynet - Complete
Delenda Est 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: 7787 - Favs: 15,586 - Follows: 9,538 - Updated: 9/21/2013 - Published: 11/14/2009 - Harry P., Bellatrix L. - Complete
Firebird's Son: Book I of the Firebird Trilogy by
Darth Marrs reviews
He stepped into a world he didn't understand, following footprints he could not see, toward a destiny he could never imagine. How can one boy make a world brighter when it is so very dark to begin with? A completely AU Harry Potter universe.
Harry Potter - Rated: M - English - Drama - Chapters: 40 - Words: 172,506 - Reviews: 3928 - Favs: 5,342 - Follows: 3,858 - Updated: 8/24/2013 - Published: 10/21/2012 - Harry P., Luna L. - Complete
Harry amidst the Vaults of Stone by
NothingPretentious reviews
Following the fall of Voldemort, it is up to the Gringotts goblins to carry out the terms of the Potters' will. What will happen when young Harry Potter - halfblood, Parselmouth, curse-scarred, outsider - is raised in the stalagmite city of Underfoot?
Harry Potter - Rated: T - English - Adventure/Fantasy - Chapters: 28 - Words: 157,245 - Reviews: 2184 - Favs: 3,943 - Follows: 4,575 - Updated: 5/24/2013 - Published: 2/23/2011 - Harry P.
How Hermione Granger and AOL got Umbridge Sacked by
apAidan reviews
This is an AU look at what might have happened the day after the Twins left the school during OOTP if Umbridge had had a reason to question Hermione as she did Harry. Since wizards don't understand anything about the internet, or computers or gamergirls, it's a classic example of what you don't know can hurt you. Rated T for ... well just because. AU Harmony. H/Hr
Harry Potter - Rated: T - English - Humor/Parody - Chapters: 1 - Words: 1,961 - Reviews: 154 - Favs: 674 - Follows: 207 - Published: 2/21/2013 - Hermione G., Harry P. - Complete
Mandragora by
NothingPretentious reviews
Consider the curiously humanoid mandrake root, or mandragora. It is hideously ugly, deadly dangerous, and a powerful restorative. Why would anything else matter? * * A tale of horror. Please review. * *
Harry Potter - Rated: T - English - Horror/Tragedy - Chapters: 1 - Words: 1,449 - Reviews: 178 - Favs: 767 - Follows: 115 - Published: 2/23/2012 - P. Sprout - Complete
Calculation by
fringeperson reviews
Young Harry liked numbers, he liked using numbers and working out the value of things. When he found out that he was a wizard and had a big pile of gold... well, he had something new to calculate. oneshot, complete, don't own.
Harry Potter - Rated: K - English - Chapters: 1 - Words: 18,141 - Reviews: 1359 - Favs: 14,840 - Follows: 3,997 - Published: 12/8/2011 - Harry P. - Complete
Flashes 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: 98 - Favs: 107 - Follows: 67 - Updated: 7/1/2011 - Published: 3/10/2011 - Complete
Memorium by
Aesop reviews
The use of memory altering spells is common in the HP books. Protecting their secrecy comes before everything else, and justifies any action. Or so they believe.
Harry Potter - Rated: K+ - English - Drama - Chapters: 1 - Words: 26,696 - Reviews: 125 - Favs: 582 - Follows: 136 - Published: 6/22/2011 - Amelia B. - Complete
Radiance 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: 466 - Favs: 344 - Follows: 150 - Updated: 3/9/2011 - Published: 11/7/2010 - Complete
Luminosity 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: 455 - Favs: 949 - Follows: 416 - Updated: 11/8/2010 - Published: 7/13/2010 - Bella, Edward - Complete
Calming Draught by
Molly Morrison reviews
Sometimes we say someone should "take a chill pill." The wizarding world has a real equivalent: the Calming Draught. So why did Snape never think to consume one himself? One shot.
Harry Potter - Rated: K+ - English - Drama - Chapters: 1 - Words: 952 - Reviews: 22 - Favs: 52 - Follows: 11 - Published: 4/7/2009 - Severus S., Harry P. - Complete
Insidious Inquisitor by
Yunaine reviews
Harry Potter is dosed with Veritaserum by Dolores Umbridge. Afterwards his entire world is turned upside down. - Set during fifth year; Harry/Susan/Hannah
Harry Potter - Rated: T - English - Humor - Chapters: 1 - Words: 14,850 - Reviews: 576 - Favs: 5,040 - Follows: 1,463 - Published: 7/12/2008 - [Harry P., Susan B., Hannah A.] - Complete
Mastermind Hunting by
Louis IX reviews
This is a story of the life of Harry Potter. From his disappearance with his friendly relatives to Dumbledore chasing after him around the world, while Voldemort and muggle secret services loom in the background. Technology, Prophecies... one word: power.
Harry Potter - Rated: T - English - Adventure/Suspense - Chapters: 40 - Words: 616,225 - Reviews: 2607 - Favs: 3,859 - Follows: 1,846 - Updated: 1/12/2008 - Published: 6/8/2005 - Harry P. - Complete
Harry gets Motivated by
BajaB reviews
Harry finds a way to get motivated, really, really motivated. A super!Harry oneshot. Post HBP, AU, No DH.
Harry Potter - Rated: K - English - Adventure/Humor - Chapters: 1 - Words: 10,709 - Reviews: 388 - Favs: 2,760 - Follows: 771 - Published: 3/6/2007 - Complete
Make A Wish by
Rorschach's Blot reviews
Harry has learned the prophesy and he does not believe that a schoolboy can defeat Voldemort, so he decides that if he is going to die then he is first going to live.
Harry Potter - Rated: T - English - Humor/Adventure - Chapters: 50 - Words: 187,589 - Reviews: 11301 - Favs: 21,233 - Follows: 7,246 - Updated: 6/17/2006 - Published: 3/23/2005 - Harry P. - Complete
One Minute by
Rachael DuBois reviews
Time is precious when fighting deadly curses. Missing moment from HBP, Snape and Katie Bell. Winner of the Snapecast September Fanfic Challenge.
Harry Potter - Rated: K+ - English - Chapters: 1 - Words: 1,019 - Reviews: 19 - Favs: 32 - Follows: 3 - Published: 5/7/2006 - Severus S., Katie B. - Complete
Sort: Category . Published . Updated . Title . Words . Chapters . Reviews . Status .
Harry Potter and the Methods of Self-Modification reviews
After the events of Harry Potter and the Methods of Rationality, Harry and his friends continue their war against an enemy even Voldemort feared. Unfortunately, the world will not wait – or keep them safe – while they mature enough to succeed.
Harry Potter - Rated: T - English - Drama/Humor - Chapters: 1 - Words: 3,596 - Reviews: 5 - Favs: 33 - Follows: 68 - Published: 3/14/2016 - Harry P.
HPMOR Setting Primer reviews
This document explains some of the setting differences between Harry Potter and the Methods of Rationality and canon Harry Potter that are usually omitted from HPMOR plot summaries. Does not cover genre rules for rationalist fiction. Contains minor spoilers for HPMOR.
Harry Potter - Rated: T - English - Chapters: 1 - Words: 559 - Reviews: 1 - Favs: 5 - Follows: 2 - Published: 3/14/2016 - Complete