AD&D 2nd Edition

Range: 20 yards/level
Components: V, S, M
Duration: 1 hour/level
Casting Time: 1 turn
Area of Effect: 10 yards/level cube
Saving Throw: None

By means of this spell, the wizard causes an illusion that hides the actual terrain within the area of effect. Thus, open fields or a road can be made to look like a swamp, hill, crevasse, or some other difficult or impassable terrain. A pond can be made to look like a grassy meadow, a precipice like a gentle slope, or a rock-strewn gully like a wide and smooth road. The hallucinatory terrain persists until a dispel magic spell is cast upon the area or until the duration expires. Individual creatures may see through the illusion, but the illusion persists, affecting others who observe the scene. Material components for this spell are a stone, a twig, and a bit of green plant.