This spell creates a subtle illusion, causing any divination (scrying) spell used to view anything within the area of this spell to instead receive a false image, as defined by you at the time of casting. The image is the visual illusion of an object, creature, or force, as visualized by you. Sound, smell, and thermal illusions are included in the spell effect. As long as the duration lasts, you can concentrate to change the image as desired. While you aren't concentrating, the image remains static.