Liquidsabre said:Perhaps an extraplanar creature would be affected the same way, being dismissed essentialyt doing the same thing, returning them to where they came from. Just a thought.
You can't return to material existence inside a solid wall either, so I'd be inclined to treat this the same way. You are shunted to the nearest open space not affected by dimensional lock, and take 1d6 damage per 5' that you got displaced.Hypersmurf said:"When the spell expires, you return to material existence."
But I can't return to material existence while within the bounds of the Lock.
A dimensional anchor/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.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.