The great circle was a cooperative abjuration spell that four to twenty priests could use to cleanse an area of evil.[1] The reverse of this spell, the black circle, could purge an area of good.


  1. 1.0 1.1 Cook, Findley, Herring, Kubasik, Sargent, Swan (1991). Tome of Magic 2nd edition. (TSR, Inc), p. 100. ISBN 1-56076-107-5.
  2. Richard Baker (1996). Player's Option: Spells & Magic. (TSR, Inc), p. 186. ISBN 0-7869-0394-5.