Harry Potter and Halo
Crossovers
Ultimatum-Part 3 (2) by GradualHail6758 reviews
This is what happens when the Spartans we ended with in Ghosts of Onyx find themselves in separate worlds where magic is real, technology is slow, heroes exist, and the missing could be closer than you think. Based off the characters from the books, games, cartoons, comics, tv series and movies that make up this web of worlds. **Re-vamp of previous 1st chapter.**
Rated: T - English - Adventure - Chapters: 1 - Words: 1,885 - Reviews: 1 - Favs: 4 - Follows: 8 - Published: 5/23/2013
Master Chief and the Order of the Phoenix by LordCaldrin45 reviews
It's been four years since Master Chief escaped the explosion of Halo. The wreckage of the Forward Unto Dawn went through a black hole, teleporting Master Chief and Cortana to back to 1995 Earth and crash land in England, where Harry Potter is taking his fifth year. A new adventure is about to begin. Review!
Rated: T - English - Chapters: 10 - Words: 19,003 - Reviews: 261 - Favs: 340 - Follows: 418 - Updated: 5/7/2013 - Published: 7/16/2012 - Harry P., Master Chief/John-117
My Emerald Child by darkangelwp reviews
HaloXHarry Potter crossover! Five year old Harry Potter wishes for a family. Well, he got one. Say hello to, Arcana, child of the Sangeili! BEING REWRITTEN!
Rated: T - English - Adventure - Chapters: 11 - Words: 24,064 - Reviews: 409 - Favs: 824 - Follows: 949 - Updated: 4/29/2013 - Published: 7/5/2007 - Harry P., Master Chief/John-117
Soldier by LilaKatze reviews
Harry was born to be a fighter-it was his destiny. But destiny never said what time period he had to become one. Harry Potter X Halo.
Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 30,856 - Reviews: 355 - Favs: 1,055 - Follows: 1,272 - Updated: 1/4/2013 - Published: 1/3/2010 - Harry P., Master Chief/John-117
Red vs Blue and the Order of the Phoenix by Until We Have Faces reviews
"Wha—?" Church looked up and saw a huge train with the words 'Hogwarts Express' written on the side. He shook off Caboose's arm and stood staring at the train."Caboose," He spoke slowly, "What in the hell did you do?" MAJOR HIATUS
Rated: T - English - Humor/Adventure - Chapters: 6 - Words: 8,032 - Reviews: 86 - Favs: 108 - Follows: 121 - Updated: 2/4/2012 - Published: 8/18/2011
A Troublesome Mistake by FireBlayze reviews
What would it be like if Caboose had accidentally found himself in the world of Harry Potter and found himself becoming best friends with Hermione Granger?
Rated: T - English - Adventure/Humor - Chapters: 1 - Words: 782 - Reviews: 7 - Favs: 12 - Follows: 15 - Published: 9/27/2011 - Hermione G.
Genius by The Red Fury reviews
Harry Potter's adventures after being sent into the world of Halo
Rated: M - English - Fantasy/Adventure - Chapters: 1 - Words: 3,051 - Reviews: 43 - Favs: 187 - Follows: 214 - Updated: 5/31/2011 - Published: 3/31/2011 - Harry P., Miranda K.
Harry Potter and the Pillar of Autumn by Some Moron reviews
Suppose the world-famous sci-fi shooter, Halo: Combat Evolved, were designed to play like EA Games' PC rendition of Harry Potter and the Prisoner of Azkaban. The adventure would unfold something like this.
Rated: K+ - English - Humor/Parody - Chapters: 2 - Words: 6,633 - Reviews: 9 - Favs: 10 - Follows: 5 - Updated: 12/28/2010 - Published: 9/13/2010
The Frozen Soldier by KitsuneTenshi124 reviews
in our time britian froze. in the chief's time only one lives in britian. and he is not happy that he's been woke up.
Rated: T - English - Chapters: 5 - Words: 3,511 - Reviews: 36 - Favs: 163 - Follows: 206 - Updated: 12/7/2010 - Published: 5/24/2010 - Harry P., Master Chief/John-117
Hero With a Serial Number by RagingCacti reviews
Chaos. Both muggle and wizard worlds are under attack. Voldemort has taken over the ministry, and Harry’s days are numbered. Horcruxes are gone. When hope has failed, a protector comes to Hogwarts.
Rated: T - English - Adventure/Angst - Chapters: 2 - Words: 660 - Reviews: 4 - Favs: 10 - Follows: 16 - Updated: 2/15/2010 - Published: 9/5/2007 - Harry P.
Path of Return by gamesguyman reviews
Cheif returns to Earth only to find that he has come back in time. Rated T for violence.
Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 636 - Reviews: 13 - Favs: 29 - Follows: 41 - Published: 1/24/2010 - Harry P., Master Chief/John-117
Defence Against the Blue Arts by Compass West reviews
Harry has a new Defence Against the Dark Arts teacher. He's big, has a southern accent and wears red armour. NOT A HALO CROSSOVER. THIS IS A RED VS BLUE CROSSOVER. Contains insubordination, shotgun blasts and some Draco and Ron whumping.
Rated: K+ - English - Humor/Horror - Chapters: 1 - Words: 3,027 - Reviews: 72 - Favs: 161 - Follows: 79 - Published: 7/22/2009 - Draco M.
5 Harry Potter meets SNAKE and WOLF by SNAKE105th reviews
HARRY MEETS SNAKE AND WOLF. I ONLY OWN THE PLOT AND SNAKE AND WOLF. Part five of the Five part Trilogy
Rated: M - English - Adventure/Romance - Chapters: 1 - Words: 5 - Reviews: 6 - Favs: 1 - Published: 3/25/2009 - Harry P.
A different War by Lukan Marvolo reviews
During the battle for Hogwarts, Harry makes the ultimate sacrifice to save the Headmaster's life, now, whisked away to another time, will he ever get home? CrossoverHalo
Rated: M - English - Adventure/Sci-Fi - Chapters: 5 - Words: 14,547 - Reviews: 105 - Favs: 207 - Follows: 334 - Updated: 7/10/2008 - Published: 6/26/2007 - Harry P., Master Chief/John-117