Most dead magic zones were found where The Weave had torn apart and left a hole. The Church of Shar also developed several rituals such as the Rite of Unwinding, that could artificially create dead-magic zones, some of which would continue to allow Shadow Weave magic to function.
Mystra or the Silver fire of her Chosen could heal the damage in the Weave caused by a dead-magic zone, but doing so drained power from the entirety of the Weave. As such, the act was discouraged by the goddess except in emergency situations. A wish or miracle could patch a 30 foot area of the damage as well.
Dead-magic zones were areas of anti-magic or null-magic that disabled enchantments or prevented spells from being maintained or cast.
In the Year of the Gauntlet, 1369 DR, Calispar Delgorth, working at the Vipers' Nest zone, discovered that plants grown within a dead-magic zone had magic-resistant properties. He hypothesized that such plants "soaked up" the essence of the dead-magic zone.
The northern quarter of the city of Tantras was a single, huge dead-magic zone of some 400 acres. It was the site of a battle between the avatars of Bane and Torm during the Time of Troubles. It became a haven to those who had offended vengeful mages.
The entire Anauroch Desert was covered in a dead-magic zone when the Church of Shar taught the Shades one of their rituals for creating them. Using the Mythallar of Thultanthar to empower the ritual allowed them to create such a vast area, though the Shadow Weave and Psionics functioned normally, crippling the Zhentarim travelling the Black Road as well as the Phaerimm. The field did not extend into the Buried Realms however, so magic continued to function normally underground. Several artficial oases dried up, most Weave-powered magic items became worthless and the ecology of magical creatures (e.g. dragons) living in the desert was drastically altered.
A certain sapphire radiated an anti-magic field similar to a dead-magic zone. It was kept in a specially shielded box to block its effects. Errtu gave this sapphire to a demon summoned by Matron Mother Yvonnel Baenre. When exposed, the spells protecting Yvonnel disappeared and Drizzt's magical items temporarily lost their enchantments.
- ↑ Ed Greenwood, Jeff Grubb (April 1998). Cormyr: A Novel (Paperback), p. 287. Wizards of the Coast. ISBN ISBN 0-7869-0710-X.
- ↑ 2.0 2.1 Ed Greenwood, Sean K. Reynolds, Skip Williams, Rob Heinsoo (June 2001). Forgotten Realms Campaign Setting 3rd edition, p. 56. Wizards of the Coast. ISBN 0-7869-1836-5.
- ↑ 3.0 3.1 Matthew G. Adkins (July 1999). Into the Nest of Vipers, Dungeon #75, p. 66. TSR, Inc..
- ↑ Jeff Grubb and Ed Greenwood (1990). Forgotten Realms Adventures, p. 8. TSR, Inc. ISBN 0-8803-8828-5.
- ↑ Troy Denning (July 2003). Waterdeep, p. 338. Wizards of the Coast. ISBN 0-7869-3111-6.
- ↑ Greg A. Vaughan, Skip Williams, Thomas M. Reid (November 2007). Anauroch: The Empire of Shade. Wizards of the Coast. ISBN 0-7869-4362-9.
- ↑ R.A. Salvatore (November 2006). Siege of Darkness. Wizards of the Coast.
- ↑ R.A. Salvatore (August 2008). Passage to Dawn (Mass Market Paperback). Wizards of the Coast. ISBN 978-0786949113.