Astral Wall
(Abjuration, Conjuration)

Range:  1 yard per level
Components:  V, S, M
Duration:  1 turn per level
Casting Time:  1 round
Area of Effect:  100 square feet per level, 5-foot radius at first level
Saving Throw:  None

This creates a wall (which can have any shape the wizard desires, including a sphere) which prevents physical effects which would pass through normal walls, such as teleport, astral projection, monkish "phase" ability, etc. Any such attempt by a character will fail, leaving the character on the same side of the wall. It is, however, possible to simply walk through an astral wall. If the spell is linked to an existing physical wall (including one created by wall of stone or wall of iron), the duration becomes one hour per level. The astral wall can be disrupted by dispel magic cast from either the physical or astral plane. The material component is a piece of parchment.

