Harry Potter and Toaru Majutsu no Index/とある魔術の禁書目録 Crossovers
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Reincarnated as a Voice by A Hopeful One reviews
The title should have been "As A Magician That Got Tricked By A Demon And Died, I'm Now Reincarnated As A Voice In The Head Of a Young Hero In Another World", but I ran out of letters.
Rated: T - English - Humor/Adventure - Chapters: 5 - Words: 16,060 - Reviews: 48 - Favs: 133 - Follows: 181 - Updated: 8/15 - Published: 7/3/2020 - Harry P., Aleister Crowley, Index L. P.
An Esper Among Wizards by BlueBlazeBlank reviews
Accelerator's name turns out to be Harry Potter. He isn't amused by the news.
Rated: T - English - Chapters: 4 - Words: 2,015 - Reviews: 12 - Favs: 67 - Follows: 91 - Updated: 2/7 - Published: 1/27
A Certain Magical Index x Harry Potter Crossover Challenge by sondowth reviews
What if Touma Kamijou or Mikoto Misaka was Harry Potter challenge.
Rated: K+ - English - Chapters: 1 - Words: 170 - Reviews: 2 - Favs: 7 - Follows: 6 - Published: 12/8/2018 - Mikoto M., Tōma K.
Number Zeroes by KazuSakai reviews
[AU - Crossover] Witches and wizards aren't magicians, they are a unique race of endangered Gemstones that have a hereditary ability; it allows them to use both their esper powers and magic safely. Heaven's Canceler once had a patient in England that kept in contact with him, and now he asked a favor from the doctor. He wants to save his grandson from being killed.
Rated: T - English - Sci-Fi/Fantasy - Chapters: 1 - Words: 8,809 - Reviews: 1 - Favs: 17 - Follows: 32 - Published: 6/26/2016 - Harry P., Neville L.
Severus Snape of the Counterstrike by CapoExecutor reviews
A small event can sometimes open new paths across the progression of time. After all, the future is never set or written in stone and this simple difference sets Severus down a new path that he had never imagined traveling on before. Sev/Lily
Rated: T - English - Supernatural/Adventure - Chapters: 7 - Words: 33,014 - Reviews: 24 - Favs: 33 - Follows: 44 - Updated: 11/3/2013 - Published: 8/6/2011