Dimensional Lock

Dimensional Lock
Caster Level(s): Clr 8, Wiz / Sor 8 Innate Level: 8 School: Abjuration Components: Verbal, Somatic Range: Medium Target: Area wide Duration: 1 minute / Casterlevel Saving Throw: No Spell Resistance: Yes

You create a shimmering emerald barrier that completely blocks extradimensional travel into and from the entire area. Creatures that enter the dimension lock itself are struck with effects as per the spell Dimensional Anchor (which may outlast the lock itself). Forms of movement that are barred include astral projection, blink, dimension door, ethereal jaunt, etherealness, gate, maze, plane shift, shadow walk, teleport, and similar spell-like or psionic abilities. Once a dimensional lock is in place extradimensional travel into or out of the area map is not possible. A dimensional lock does not interfere with the movement of creatures already in ethereal or astral form when the spell is cast, nor does it block extradimensional perception or attack forms. Also, the spell does not prevent summoned creatures from disappearing at the end of a summoning spell.