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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... COMPLETE.
Harry Potter - Rated: T - English - Drama/Humor - Chapters: 122 - Words: 661,619 - Reviews: 29786 - Favs: 16,051 - Follows: 14,335 - Updated: 3/14 - Published: 2/28/2010 - Harry P., Hermione G. - Complete
Potter Twins 5: The Order of the Phoenix
by Plato reviews
This is my fifth story in the Potter Twins series. Buffy's the new slayer. Harry shares some of her powers, and Voldemort is back.
Crossover - Buffy: The Vampire Slayer & Harry Potter - Rated: T - English - Chapters: 8 - Words: 25,253 - Reviews: 66 - Favs: 50 - Follows: 68 - Updated: 1/19 - Published: 5/19/2012 - [Buffy S., Cedric D.] Harry P.
by Araceil reviews
FINISHED. When they went to sleep, they hoped of a better future. But with Gaia insane and Magic as dead as his friends, Harry has no reason to stay. Escape and exist was all he had in mind when he stowed away on a ship to Pandora. Not another war. Slash.
Crossover - Harry Potter & Avatar - Rated: T - English - Adventure/Romance - Chapters: 22 - Words: 80,475 - Reviews: 2421 - Favs: 4,171 - Follows: 3,513 - Updated: 7/12/2014 - Published: 8/29/2010 - Harry P., Tsu'tey - Complete
Truth and Revelations
by Marcus S. Lazarus reviews
When the SGC is infiltrated by a dangerous group with connections to Daniel's past, Daniel is forced to face several secrets that he has kept from his friends as he comes face-to-face with a life that he has been trying to forget since he lost everyone
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Drama/Romance - Chapters: 55 - Words: 216,630 - Reviews: 551 - Favs: 842 - Follows: 1,009 - Updated: 4/18/2014 - Published: 7/9/2006 - S. Carter, D. Jackson, Harry P. - Complete
by Tajjas reviews
The Sky People's technology helps to save Tsu'tey after the battle, but he isn't quite sure what to think of the broken Sky Person in the wheeled chair that keeps coming to visit him while he's recovering. Friendship fic, AU for obvious reasons.
Avatar - Rated: K+ - English - Friendship - Chapters: 37 - Words: 126,966 - Reviews: 714 - Favs: 1,116 - Follows: 1,159 - Updated: 1/7/2014 - Published: 4/29/2010 - Tsu'tey, Jake S.
The Terran Jedi
by The Dark Scribbler reviews
The sequel to Jedi Harris. Xander and his fellow Jedi battle on. The latest chapter is up at long last!
Buffy X-overs - Rated: K+ - English - Adventure - Chapters: 48 - Words: 479,112 - Reviews: 1718 - Favs: 1,195 - Follows: 1,082 - Updated: 12/19/2013 - Published: 10/30/2005
by wolf-shinigami reviews
At the age of Four Harry and the Dursleys take a trip to Washington. What happends when Harry is found by a now retired GIbbs?
Crossover - Harry Potter & NCIS - Rated: T - English - Chapters: 9 - Words: 5,677 - Reviews: 600 - Favs: 1,185 - Follows: 1,929 - Updated: 8/24/2013 - Published: 1/26/2009 - Harry P., Leroy Jethro Gibbs
by Cyborg0 reviews
Harry Potter has nothing left but to contemplate the emptiness of his universe. Standing over the corpse of his defeated foe he realizes that he has lost already. But something changes, and he discovers there may be more to the universe than he dares hope
Crossover - Harry Potter & Avatar - Rated: T - English - Sci-Fi/Fantasy - Chapters: 21 - Words: 68,588 - Reviews: 632 - Favs: 1,464 - Follows: 1,902 - Updated: 3/12/2013 - Published: 2/21/2010 - Harry P.
by Rude's Mom reviews
SG-1's Dr. Jackson has a daughter. She's short, blonde, and a vampire slayer. Too bad nobody told him.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: T - English - Chapters: 43 - Words: 54,940 - Reviews: 1445 - Favs: 1,196 - Follows: 1,526 - Updated: 12/11/2012 - Published: 2/2/2005 - Buffy S., D. Jackson
Isis's Bane and the Goblet of Fire
by althor42 reviews
Sequel to Isis' bane: Tar'Chell's Wrath. Years have passed, and Harry lives his life at peace, exploring the galaxy. He takes an offer to go to Atlantis, to do amazing things. He thinks he knows where his life is taking him. Voldemort has other plans.
Crossover - Harry Potter & Stargate: Atlantis - Rated: T - English - Sci-Fi/Fantasy - Chapters: 14 - Words: 115,980 - Reviews: 637 - Favs: 1,203 - Follows: 1,101 - Updated: 9/9/2012 - Published: 12/16/2010 - Harry P., John S. - Complete
Ziva in Middle Earth
by LadyRynofSunnydale reviews
Ziva winds up landing in Middle Earth right before the departure of the Fellowship. Will Ziva survive Middle Earth, or, more importantly, will Middle Earth survive Ziva? NCIS Lord of the Rings crossover
Crossover - Lord of the Rings & NCIS - Rated: T - English - Adventure - Chapters: 10 - Words: 24,184 - Reviews: 192 - Favs: 112 - Follows: 204 - Updated: 8/12/2012 - Published: 2/10/2008 - Ziva D.
Athan Dagnir a'Rina
by Star of the Morning Light reviews
Harry has finally defeated Voldemort, and now desires nothing more than to have a different life. Now he's in Rivendell with no memories of his past life, meanwhile gaining Sauron's interest.
Crossover - Harry Potter & Lord of the Rings - Rated: M - English - Romance/Fantasy - Chapters: 7 - Words: 18,206 - Reviews: 398 - Favs: 726 - Follows: 1,145 - Updated: 6/7/2012 - Published: 10/17/2005 - Harry P., Legolas
BURIED BUT NOT FORGOTTEN
by clavina reviews
SG1 decide to dial one of the gates from the Ancient Repository and they run into the Tok'ra ; a strange ancient wizard and some new strange aliens with pointed ears!
Crossover - Stargate: SG-1 & Lord of the Rings - Rated: K - English - Chapters: 17 - Words: 60,768 - Reviews: 42 - Favs: 47 - Follows: 21 - Updated: 4/13/2012 - Published: 2/16/2012 - J. O'Neill, Gandalf - Complete
by TheSecretUchiha reviews
With the war finally over, Harry finds that all he had fought for is gone. After reaching this startling revelation, he's drawn into another world and another war. Eventual slash. Legolas/Harry. Rating may go up.
Crossover - Harry Potter & Lord of the Rings - Rated: T - English - Adventure/Romance - Chapters: 9 - Words: 28,205 - Reviews: 473 - Favs: 1,380 - Follows: 1,931 - Updated: 1/22/2012 - Published: 12/5/2009 - Harry P., Legolas
The Lord of Light
by Darth Marrs reviews
Where the hell is Harry now? Third in the Harem Series begun by HP and the Four Founders and continued in Forever Mage. How will Darth Vader and the Emperor deal with a wizard born long ago in a galaxy far, far away?
Crossover - Star Wars & Harry Potter - Rated: M - English - Humor/Drama - Chapters: 39 - Words: 238,517 - Reviews: 1889 - Favs: 1,813 - Follows: 1,447 - Updated: 11/11/2011 - Published: 3/31/2011 - Leia O., Harry P. - Complete
Elda Kundu, Kurutar: A Wizard's Tale
by Jess S1 reviews
During the summer after fourth year, Harry makes an innocent wish that takes him to a different world. He needs to find a way home, but first he has to decide where his home really is... LOTR/HP. There & Back Again - Rewritten
Book X-overs - Rated: T - English - Adventure/Humor - Chapters: 6 - Words: 96,563 - Reviews: 278 - Favs: 743 - Follows: 862 - Updated: 9/11/2011 - Published: 7/17/2008
Walking the Path
by arturus reviews
Part 1 of AU X-over DH/LOTR. A haunted & disturbed Harry Potter is thrust through the veil to 'save' the fearful wizarding world from a potential Dark Lord. Followed by a faithful friend they begin a journey that will change Middle Earth forever. HP/LL Re-edited 14/12/2012
Crossover - Harry Potter & Lord of the Rings - Rated: M - English - Drama/Romance - Chapters: 28 - Words: 88,140 - Reviews: 274 - Favs: 846 - Follows: 588 - Updated: 11/26/2010 - Published: 12/1/2009 - Harry P. - Complete
by Wishweaver reviews
Harry returns to Privet Drive after 4th year and finds it...empty! What do you do when you can't go to your friends for help? Additional Story Notes FYI: a. AU Summer before Fifth Year Fic, b. Not particularly fast paced.
Harry Potter - Rated: K+ - English - Drama - Chapters: 36 - Words: 264,047 - Reviews: 8494 - Favs: 10,159 - Follows: 7,647 - Updated: 11/16/2010 - Published: 3/6/2003 - Harry P.
Where The Sleeper Waits
by Sin Maxwell and Co reviews
A strange child rides with the Nazgul. Valo is taken under the care of Aragorn as the journey begins but he holds many secrets. Why does Sauron want his precious "Key" back so badly? Can Legolas get passed his hatred for the Morgul child? SLASH! Legarry!
Crossover - Harry Potter & Lord of the Rings - Rated: M - English - Romance/Drama - Chapters: 25 - Words: 56,971 - Reviews: 622 - Favs: 1,756 - Follows: 1,025 - Updated: 11/4/2010 - Published: 2/21/2010 - Harry P., Legolas - Complete
by Aglaranna reviews
In the wake of Angelus's death, Buffy Summers is thrown into a galaxy far, far away. Trapped into slavery, she meets a young boy named Anakin Skywalker. From there her destiny is revealed as she and Anakin set out to change the face of the Galaxy.
Crossover - Star Wars & Buffy: The Vampire Slayer - Rated: K+ - English - Adventure/Sci-Fi - Chapters: 25 - Words: 92,939 - Reviews: 88 - Favs: 118 - Follows: 168 - Updated: 8/23/2010 - Published: 9/21/2009 - Obi-Wan K., Buffy S.
Project 880 MK II
by Dachande663 reviews
Based upon the original scriptment created by James Cameron in 1995, this is the story of Avatar as it was originally written. While some things stay the same, a lot changed in the ten years between penning and filming the movie.
Avatar - Rated: T - English - Adventure/Sci-Fi - Chapters: 9 - Words: 44,316 - Reviews: 21 - Favs: 31 - Follows: 28 - Updated: 7/11/2010 - Published: 1/17/2010
The Forever Mage
by Darth Marrs reviews
Harry Potter/ST:NG era post movies crossover. A young man with messy hair and green eyes finds himself in the middle of 24th Century Scotland with no memories. Join him as he tries to solve not only who he is, but where his people are.
Crossover - StarTrek: The Next Generation & Harry Potter - Rated: M - English - Drama/Sci-Fi - Chapters: 24 - Words: 102,957 - Reviews: 1280 - Favs: 1,800 - Follows: 827 - Updated: 3/13/2010 - Published: 9/26/2009 - Harry P. - Complete
What Fate Can Overcome
by TDWidow reviews
Haunted by dreams of her missing family, Mara and Luke search the galaxy for clues. Their quest leads them to a technology-barren planet called Arda, where they quickly learn that the Skywalker name is hated. LotR crossover. Mention of slash & mpreg.
Crossover - Star Wars & Lord of the Rings - Rated: T - English - Drama - Chapters: 17 - Words: 25,998 - Reviews: 56 - Favs: 54 - Follows: 58 - Updated: 1/10/2010 - Published: 10/16/2008 - Luke S., Aragorn - Complete
Clone to Clone
by PaBurke reviews
Two not-so-unique individuals meet in a high school classroom
Crossover - Pretender & Stargate: SG-1 - Rated: T - English - Chapters: 2 - Words: 23,685 - Reviews: 36 - Favs: 141 - Follows: 40 - Published: 6/27/2009 - Complete
Phantoms and Slayers
by WinterD reviews
During “Anne”, Buffy is unsuccessful in escaping from the ‘hell’ dimension and instead finds herself passed off to another owner on the world she now lives on. Takes place during TPM of the Star Wars movies.
Crossover - Star Wars & Buffy X-overs - Rated: T - English - Chapters: 25 - Words: 113,586 - Reviews: 224 - Favs: 225 - Follows: 217 - Updated: 8/7/2008 - Published: 10/10/2005
Second To None
by RoczaDeb reviews
Jack's Clone goes to USAF BMT. POV. Challenge. ALL CHAPTERS HAVE BEEN UPDATED. Sixth WOT is up. Merry Christmas!
Stargate: SG-1 - Rated: T - English - Humor/Angst - Chapters: 7 - Words: 101,866 - Reviews: 308 - Favs: 480 - Follows: 187 - Updated: 12/23/2007 - Published: 6/26/2007 - J. O'Neill - Complete
by Brenna reviews
So what ever happened to Jack's clone? WIP
Stargate: SG-1 - Rated: K+ - English - Drama - Chapters: 14 - Words: 23,006 - Reviews: 240 - Favs: 139 - Follows: 170 - Updated: 4/15/2007 - Published: 1/11/2004
Rings and Medallions
by The Red Dragons Order reviews
Sauron has gotten hold of the Aztec gold, which can only spell trouble. Hey ho, hey ho, a-treasure huntin’ we go! Sequel to PAW, RR
Crossover - Harry Potter & Lord of the Rings - Rated: T - English - Adventure/Humor - Chapters: 21 - Words: 84,806 - Reviews: 840 - Favs: 486 - Follows: 444 - Updated: 3/5/2007 - Published: 6/28/2004
Forest of Mystery
by Star Polaris reviews
An accident on the Hogwarts Express forces the fifth year Gryffindors to run for their lives to a strange forest where their lives will be in even more danger.
Harry Potter - Rated: T - English - Adventure - Chapters: 43 - Words: 78,335 - Reviews: 1514 - Favs: 1,307 - Follows: 419 - Updated: 2/24/2007 - Published: 5/28/2002 - Harry P. - Complete
by Asha Dreamweaver reviews
BtVSLotR. Buffy gets sent to Middle Earth to help bring down Sauron. Her duty, like the Istari, is not to confront Sauron directly but to help those fated to face him bring him down. More specifically she’s to help the King of Gondor get on his throne.
Buffy X-overs - Rated: T - English - Adventure/Romance - Chapters: 57 - Words: 482,935 - Reviews: 2598 - Favs: 823 - Follows: 410 - Updated: 7/7/2006 - Published: 4/13/2004
Sort: Category . Published . Updated . Title . Words . Chapters . Reviews . Status .
SG1 is trapped with no DHD and a Gate that won't dial out on the world of the Hidden, neither the Goa'uld nor the Tokra know where it is. They make a life for themselves, only to find that it is threatened by a distant evil. Jack/Sam, Daniel/?. No slash.
Crossover - Stargate: SG-1 & Lord of the Rings - Rated: K+ - English - Adventure/Romance - Chapters: 4 - Words: 8,450 - Reviews: 74 - Favs: 61 - Follows: 119 - Updated: 9/18/2012 - Published: 7/30/2010 - J. O'Neill, Frodo B.
Dragonriders, Part 1 reviews
Future fic, totally Gen. A potion, ruined, but not destroyed, by a fool throwing a book into it. An empathic Albus Potter. And 32 newly minted dragon eggs. The wizarding world will never be the same. Chapter 5 is up!
Crossover - Harry Potter & Dragonriders of Pern series - Rated: T - English - Drama/Adventure - Chapters: 5 - Words: 11,979 - Reviews: 90 - Favs: 107 - Follows: 145 - Updated: 9/1/2012 - Published: 12/5/2009 - Albus S. P.
Past and Present Tense reviews
While helping with an archaeological dig on a primitive world called Toprak, the crew of the Enterprise discover a strange correlation between their history and Earth's, as well as a group of people with a past on both worlds suspended in crystal.
Crossover - StarTrek: The Next Generation & Buffy: The Vampire Slayer - Rated: K+ - English - Sci-Fi - Chapters: 2 - Words: 3,646 - Reviews: 18 - Favs: 22 - Follows: 58 - Updated: 9/8/2010 - Published: 4/12/2010 - Buffy S.
Hunter and Protector reviews
Why did Eywa send her most viscious predator to Neytiri as a mount when her own was killed? J/N, Trudy not dead. Prologue only for now.
Crossover - Buffy: The Vampire Slayer & Avatar - Rated: T - English - Drama - Chapters: 1 - Words: 903 - Reviews: 12 - Favs: 23 - Follows: 37 - Published: 8/21/2010 - Angel, Neytiri