Toaru Majutsu no Index Light Novel Volume 13 was first published on April 10, 2007. It the final part of the two-novel storyline that was first presented in the previous novel. It features both Touma and Accelerator as protagonists, with Touma facing off against Vento of the Front of the magic side, while Accelerator faces off against Kihara Amata of the science side. Due to the resulting aftermath of the events in the novel, it is considered the turning point of the series both in the story.
그녀가 다루는 수수께끼의 마술에 의해 도시 기능은 완전히 마비되고
대부분의 사람들은 의식을 빼앗긴 채 쓰러져 갔다.
그녀가 노리는 것은 카미조 토우마. 로마 정교가 공식적으로 인정한 적.
같은 시각.
최강의 레벨 5 액셀러레이터가, 그를 지탱해 주는 소녀 ‘라스트 오더’를 지키기 위해
과학자 키하라 아마타가 이끄는 무장집단 ‘하운드 독’과 격돌했다.
마술과 과학, 두 참사가 동시에 학원도시를 덮친다.
카미조 토우마, 인덱스, 액셀러레이터, 라스트 오더. 서로 다른 네 사람의 마음이 교차할 때, 이야기는 시작된다――!
Accelerator's search for Last Order has taken a turn for the worst. His superhuman powers have a strict time limit, his enemies know exactly how to beat him, and he has no idea where he sent the little girl he's supposed to protect. Luckily for him, the first one to stumble across her is a certain unlucky teenage boy. But while trying to get Last Order back home, Touma Kamijou realizes that a much more dangerous player has entered the game. A storm has arrived in Academy City, and her name is God's Right Seat, Vento of the Front!