Please help me with understanding Nylph's Bone Form

[Venom20]

<DIV>I bought the spell last night I scribed it heck I even used it. But when I used it I didnt turn into a skelly what did I do wrong?</DIV>

[gm9]

Either you have set /hide or you are already under the effects of another illusion (e.g. Lich).

[Venom20]

Oh ok that might be what I did somehow on accident! thanks