This creates the illusion of walls and ceilings, with whatever description and arrangement the caster desires. These can include torches, windows and other common embellishments (not doors), but that's the extent of this spell.

Illusion [73] 
    Extended (Infravision, Touch, Taste/Smell) [+50%] 
    Independence [+40%] 
    Persistent [+40%] 
    Extended Duration (Permanent) [+150%] 
    Phantasm [-20%] 
    Limited (Walls and Ceiling) [-40%] 
    Magical [-10%] 
    Spell Components [-20%] 
        Must say "wall" in Latin 
        Must gesture with hands 
Level 2 [85] 
    Add Area Effect (4 yard radius) [+50%] 
        Builds on built-in 2 yard radius 
Levels 3+ [+12.5/level] 
    Increase Area Effect by 1 step [+20%]