Toaru Majutsu no Index Light Novel Volume SS Special Edition (とある魔術の禁書目録SS Special Edition?) is a collection of short stories, previously only seen limited releases. It was originally published as supplementary material of Dengeki Bunko Magazine Vol.3 (電撃文庫MAGAZINE Vol.3?), bundled together with Shakugan no Shana mechanical pencil and Kino no Tabi eraser. It includes four and extra chapters of Toaru Majutsu no Index SS: Stiyl. These chapters were later included in Toaru Majutsu no Index SP.
- Chapter 1 was released in Dengeki Bunko MAGAZINE Prologue 1 on December 10, 2007.
- Chapter 2 was released in Dengeki Bunko MAGAZINE Prologue 2 on February 9, 2007.
- Chapter 3 was released in Dengeki Bunko MAGAZINE Vol.1 on April 10, 2008.
- Chapter 4 was released in Dengeki Bunko MAGAZINE Vol.2 on June 10, 2008.
- Extra Chapter was released in Dengeki Bunko MAGAZINE Vol.3 - Toaru Majutsu no Index SS SPECIAL EDITION on August 9, 2008.