Must be cast in an enclosed area. A plane bisects the enclosed area and shows the both sides as the user wishes it to appear (empty, battle raging, people walking, etc). The illusion entails sounds as well as visuals. Anyone standing in front of the plane that is suspicious of the scene they are seeing and hearing must make an intelligence saving throw in order to see through the illusion or they are deceived. Crossing through the plane results in the illusion being seen from the other direction. At level one the enclosed area must be no more than about two medium sized person wide and around eight feet tall (standard hallway width and height). Each side of the plane must be completely touching a surface.
At higher levels the enclosed area limitation increases in size by doubling for every level above spell slot level 1.
* - (Two small solid pieces of something reflective)