This spell combines several elements to create a powerful
protection from scrying and direct observation. When the spell is
cast, the character dictates what will and will not be observed
in the spells area. The illusion created must be stated in
general terms. Once the conditions are set, they cannot be
Attempts to scry the area automatically detect the image
stated by the character with no save allowed.
Direct observation may allow a save (as per a normal
illusion), if there is cause to disbelieve what is seen.
Certainly onlookers in the area would become suspicious if the
column of a marching army disappeared at one point to reappear at
another. Even entering the area does not cancel the illusion or
necessarily allow a save, assuming that hidden beings take care
to stay out of the way of those affected by the illusion.