The third Toaru Majutsu no Index light novel volume was first published on September 20, 2004. It is the first novel to focus on the science side with the title character, Index, not even making a significant appearance. The story deals with Touma after his memory loss meeting an acquaintance from the past, Misaka Mikoto, and getting involved with her secret, her clones used for an experiment where they are killed by the strongest esper in Academy City, the Accelerator.
Kamijou Touma murmurs as the money he plans to spend on juice is swallowed by a vending machine after a long day of supplementary lessons.
"Wait a sec! What are you doing here?"
Accompanied by the tapping sound of a pair of loafers, Misaka Mikoto notices Kamijou Touma.
After that, a girl with the splitting image of Mikoto appears.
A meeting of three people.
This is the narrative of the events that happened within that incident.
With Accelerator called out, his slaughtering play begins again as nightfall opens up.
- Prologue: Radio Noise — Level2
- Chapter 1: Imagine Breaker — Level0(and_More)
- Chapter 2: Radio Noise — Level2(Product_Model)
- Chapter 3: Railgun — Level5
- Chapter 4: Accelerator — Level5(Extend)
- Epilogue: Only One — ID_NoT_Found
|어떤 마술의 금서목록 3|
|Release Date||March 13, 2007|
|Number of Pages||324 pages|
한여름날의 저녁. 보충수업을 마치고 돌아오는 길에
|Release Date||  April 26, 2008|
May 20, 2012
|ISBN-13|| ISBN 978-986-174-654-8 |
投銅板買果汁卻被自動販賣機吃錢的上条當麻又開始感慨自己的不幸， 但這時他卻被「放電國中妹」御坂美琴給叫住。 然而更讓上条驚訝的是，美琴居然還有一個長相一模一樣的妹妹！ 這三個人的相遇，卻也揭開了一件由超能力者所引發的殺戮慘劇事件序幕……
|A Certain Magical Index Volume 3|
|Release Date||May 19, 2015|
|Number of Pages||260 pages|
|Touma Kamijou is the unluckiest boy in Academy City. Having settled the magical side of his problems for a while, the scientific side of things starts to heat up when Touma's rival-turned-friend Mikoto meets her own clone. That's only the beginning of a chain of events that leads Touma and Mikoto to face their deadliest foe yet. Kazuma Kamachi's smash hit light novel series continues!|
- ↑ 1.0 1.1 とある魔術の禁書目録（3）（著者：鎌池和馬） from ASCII Mediaworks. Retrieved on 2014/1/10.
- ↑ 어떤 마술의 금서목록 3 from NT Novel (Korean). Retrieved on 24/07/19.
- ↑ 3.0 3.1 魔法禁書目錄 (3) from Kadokawa Taiwan (Chinese). Retrieved on 10/12/2014.
- ↑ 4.0 4.1 魔法禁書目錄 from Wikipedia (Chinese). Retrieved on 11/12/2014.
- ↑ 5.0 5.1 A Certain Magical Index, Vol. 3. Hachette Group. Retrieved on 11/12/2014.