Shinyaku Toaru Majutsu no Index Light Novel Volume 21/Chapter 4

Characters
By order of appearance:
 * Samuel Liddell MacGregor Mathers
 * Aleister Crowley
 * Mina Mathers (Reading Thoth 78)
 * William Wynn Westcott
 * Lady of the Masquerade Ball
 * Israel Regardie
 * Annie Horniman
 * John William Brodie-Innes
 * Robert William Felkin
 * Frederick Leigh Gardner
 * Hamazura Shiage
 * Dion Fortune

Abilities

 * Symbolic Weapons - Samuel Liddell MacGregor Mathers
 * Magic recoil absorption - Aleister Crowley

New Abilities

 * Pentagrammaton-based Enhancement - Aleister Crowley
 * Stigmata-based Ascension - Aleister Crowley
 * INRI-based Enhancement - Samuel Liddell MacGregor Mathers
 * St. Christopher's Staff - Aleister Crowley
 * Archangel Summoning - Samuel Liddell MacGregor Mathers
 * Uriel Banishment - Aleister Crowley


 * Qliphoth-based neutralization - Aleister Crowley

Locations

 * United Kingdom
 * Scotland
 * A Certain Church
 * Egypt

Cultural References

 * The spell which Mathers uses to turn the hellfire from Aleister's spell back against him in the form of a pig is based on the (also called the "Miracle of the (Gadarene) Swine"), a story from the gospels where Jesus Christ exorcised a  from a man and cast them into a herd of swine.