Illusory Wall

This spell creates the illusion of a wall, floor, ceiling, or similar surface, covering up to a 10-foot square area, up to 1 foot thick. The section of wall created appears absolutely real when viewed, but physical objects can pass through it without difficulty. When the spell is used to hide pits, traps, or normal doors, any detection abilities that do not require sight work normally. Touch or a probing search may reveal the true nature of the surface; the GM may either allow a save vs. Spells to detect the illusion, or if the probing attempt is well devised the GM may allow it to automatically succeed. In either case, such measures do not cause the illusion to disappear.