Stone Wall
(Alteration)(Elemental (Earth))

Range:  5 yards per level
Components:  V, S, M
Duration:  Permanent
Casting Time:  7
Area of Effect:  Special
Saving Throw:  None

Using this spell, the caster can create a wall made of stone. The wall must stand on a solid surface and can meld into adjacent stone objects.
The spell creates a wall of stone that is half an inch thick, ten feet wide and two feet high per level of the caster. Thus, a 10th-level priest can make a stone wall 5 inches thick, 50 feet wide and 20 feet high. One turn after the casting the magic of the spell fades and the wall of stone becomes a permanent object (that is not subject to dispel magic); this is the reason the spell belongs to the Alteration and not to the Invocation school.
The stone wall is primarily a defensive spell, used to stop pursuers or seal an underground passage. Another use of the spell is to make constructs of stone. The material component of the spell is rock of any type of a roughly equal amount: the spell does not create new material but rather reshapes the material already present. This spell was designed for the Dark Sun campaign world.

