Mind Find
(Divination)

Range:  0
Components:  V, S, M
Duration:  1 round per level
Casting Time:  1 round
Area of Effect:  100-foot radius sphere
Saving Throw:  None

This is an extremely powerful version of true seeing combined with a form of clairvoyance. Like true seeing, it allows the wizard to exactly locate people that are displaced, invisible, polymorphed, changed, enchanted, or masked by an illusion. However, the spell affects the mind, not the eyes of the wizard, so the wizard can, in addition, see through fog, around corners, trees, etc. (anything within the 100-foot radius).
About the only things that will block the penetration power of the spell are non-detection (the recipient of a non-detection gets a saving throw to see if the mind find worked), lead walls, or walls of force. The spell also confers the ability to perceive minds in any direction, including up or down. Thus, the wizard could locate the mind of someone 80 feet above him and behind him. Needless to say that backstabbing someone who knows exactly where you are is impossible.
However, this spell cannot locate objects or things without minds, thus it could not locate anything that had less than zero Intelligence. The drawback to this spell is that it makes the wizard more susceptible to mind-affecting spells: save at -2.
The material component of this spell is a whole mind flayer brain.

