Teleport block

From the Lyorn Records of the Dragaeran Empire

A sorcerous spell that prevents anyone from teleporting either into or out of (and often both) a given area.

The range of a teleport block depends on the power of the sorcerer casting the spell.

Typically, a block will only cover a few hundred square yards; however a truly powerful Wizard such as Loraan may be able to place a block that covers several square miles.

A powerful sorcerer or Wizard may be able to break through a teleport block. (Daymar has done this, on occasion, as has Sethra Lavode.)