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The Battle of Demarch's Fall was a battle fought in the Halls of Demarch beneath the city of Tantras in the Vast between rival factions of Demarch's Alliance, an alliance between beguilers who served Leira and those who served Mask.[1][2]


After Mask betrayed Leira in the Year of Shadows, 1358 DR, the alliance was broken and the two factions fought a massive battle in their former headquarters, the Halls of Demarch.[1][2]

The rival beguilers fought a number of bloody skirmishes through the tunnels of the subterranean complex, all concealed in mists. An enormous amount of magic was cast, resulting in the opening of a rift to the Plane of Shadow. Shadows and various other monsters fell out of the rift, along with several magic items and the tome of Suelivain. The Maskarran and Leiran beguilers slaughtered each other.[1][2]


The survivors fled across Faerûn, living in fear of revenge attacks and church agents seeking to learn or maintain their secrets, most never coming back. A few friendly ex-members, however, returned to the Halls of Demarch and reformed into the Demarch's Folly organization.[1][2]

The Halls of Demarch, however, were left permanently filled with fog and haunted by undead, shadows, and other monsters.[1][2]



  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Eytan Bernstein (2007-02-14). Beguilers and Dragon Shamans. Class Chronicles. Wizards of the Coast. Retrieved on 2016-05-21.
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Eytan Bernstein (2007-07-25). Shadowcasters. Class Chronicles. Wizards of the Coast. Retrieved on 2016-05-21.