The fourth Toaru Majutsu no Index light novel volume was first published on December 10, 2004. The story focuses on Touma's vacation due to the aftermath of the previous volume and gets to spend some time with his parents. However, he is later caught in a magic spell that can threaten the world. Not only that, he meets another Necessarius magician—Kanzaki Kaori, a magician from—Annihilatus Sasha Kreutzev, and discovers an old friend has a certain secret —Tsuchimikado Motoharu. Little did he know, that one member of his family also carries a secret of their own, forcing Touma to confront his long forgotten past.

Publisher's SummaryEdit

Kamijou Touma receives permission to go outside Academy City and goes on a beach vacation with his family.

Then he discovers that his mother is Index, Index is Aogami Pierce, Kanzaki Kaori is Stiyl Magnus, Stiyl is a fisherman, Misaka Imouto is the son, and Misaka Mikoto is his younger sister...!?

A certain magic spell is to blame.

Kamijou Touma finds himself in the middle of the unfolding of the mysterious spell "Angel Fall"!


  • Prologue: Parallel World of the Real World
  • Chapter 1: The Magic World's Hex Suspect
  • Chapter 2: Detective of the Battling World
  • Chapter 3: Angel Force of the Harmful World
  • Chapter 4: The Last Wizard of the Single World
  • Epilogue: My Betrayer of the Everyday World


Localized ReleasesEdit


어떤 마술의 금서목록 4
Toaru Majutsu no Index Light Novel v04 Korean cover
Release Date 한국어 June 11, 2007[2]
ISBN-13 한국어 ISBN 978-89-252-0622-6
Number of Pages 310 pages
학원도시에서 외출 허가를 얻어 가족과 함께 바다로 바캉스를 온 카미조 토우마.

거기서 그가 본 것은 어머니가 인덱스이고, 인덱스가 파란머리 피어스고,
칸자키 카오리가 스테일이고, 스테일이 바다의 아저씨고, 미사카 동생이 그 아들이고,
미사카 미코토가 친동생인 광경?!
그것은 '어떤 마술'이 원인이었다.
수수께끼의 마술 '엔젤 폴'이 카미조 토우마를 중심으로 전개된 듯─?!
대인기 학원 액션 제4탄 등장!


魔法禁書目錄 4
Toaru Majutsu no Index Light Novel v04 Chinese cover
Release Date ‪中文(台灣)‬ July 1, 2008[3]
中文 June 5, 2012[3]
ISBN-13 ‪中文(台灣)‬ ISBN 978-986-174-734-7[3]
中文 ISBN 978-7-5356-5330-7[3]

但是這時怪事發生了,母親成了茵蒂克絲,茵蒂克絲成了藍髮耳環, 神裂火織成了史提爾,史提爾成了海邊大叔,御坂妹妹成了海邊大叔的兒子, 御坂美琴成了當麻的妹妹!?為什麼會這樣? 原因似乎是「某種魔法」!神秘魔法「天使墜落」正以上条當麻為中心向外展開──!?


A Certain Magical Index Volume 4
A Certain Magical Index Light Novel v04 cover
Release Date English August 18, 2015[4]
ISBN-13 English ISBN 978-0-316-34056-4
Number of Pages 224 pages
Toma Kamijou has gotten permission to leave Academy City and goes on a beach vacation with his family. But somehow now his mother is Index, Index is Pierce Aogami, Kaori Kanzaki is Stiyl Magnus, Stiyl is a crusty old sea dog, Misaka's little sister is the sea dog's son, and Misaka is Toma's little sister--and a certain magical spell is to blame for everything! Toma's caught in the midst of the mysterious Angel's Fall spell in the latest volume of the smash-hit light novel series!


A Certain Magical Index Tome 02 (Vol.3&4)
A Certain Magical Index Light Novel v02 French cover
Release Date Français May 9, 2019[5]
ISBN-13 Français ISBN 978-2-373-02055-7[5]
Number of Pages 414 pages[5]
Quelque temps après les évènements paranormaux qui ont bouleversé Academy City, le malchanceux Tôma Kamijô tente de retrouver une vie étudiante normale. Toutefois, cette apparente tranquillité tourne court lorsque les sombres secrets de son amie Misaka se révèlent. Empêtré de nouveau malgré lui dans un tourbillon d'incidents magiques et scientifiques, Tôma doit faire face au plus puissant des Niveau Cinq ![5]


  1. OT Volume 4: (Japanese) Dengeki Bunko
  2. 어떤 마술의 금서목록 4 from NT Novel (Korean). Retrieved on 24/07/19.
  3. 3.0 3.1 3.2 3.3 魔法禁書目錄 (4) from Kadokawa Taiwan (Chinese). Retrieved on 10/19/2015.
  4. Volume 4 English: Yen Press
  5. 5.0 5.1 5.2 5.3 A certain magical Index, Tome 2. from Ofelbe Editions (French). Retrieved on 19/3/2019.
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