The change this makes in the affected trees is genetic and inheritable. It causes the trees to emit fog and an energy field that interferes with sense of direction. Together, these make navigating the forest quite impossible without some kind of help. Even the Absolute Direction Advantage is useless.

This spell was created by the Guild Master of the Shadowed Eyes and she has shared it with no one.

Affliction [110] 
    Advantages [+792%] 
        Obscure (Vision) 4 [19.2] 
            Extended (Infravision) [+20%] 
            Extended (Ultravision) [+20%] 
            Area Effect (16 yard radius) [+150%] 
                Adds to built-in radius 
            Always On [-50%] 
        Obscure (Sense of Direction) 10 [60] 
            Extended (Absolute Direction) [+20%] 
            Area Effect (8 yard radius) [+100%] 
                Adds to built-in radius 
            Stealthy [+100%] 
            Always On [-50%] 
            Magical [-10%] 
    Extended Duration (Permanent) [+300%] 
    Malediction (As Regular Spell) [+100%] 
    Based on Activation Roll [+5%] 
    Emanation [-20%] 
    Only Affects Trees [-60%] 
    Takes Extra Time 7 [-70%] 
    Magical [-10%] 
    Spell Components [-40%] 
        Must chant "confusing forest" in Latin 
        Must gesture with hands 
        Must dance and spin 
Level 2 [115] 
    Add Area Effect (2 yard radius) [+50%] 
Levels 3+ [+5/level] 
    Increase Area Effect by 1 step [+50%]