Astral Sense

By means of this spell the caster can see astral, ethereal or invisible creatures.

Liber Mysterium
The Netbook of Witches and Warlocks  
By Timothy S. Brannan and The Netbook of Witches and Warlocks Team

Abjuration

Level: Witch 3
Components: V S M
Casting Time: 1 round
Range: Touch Target, Effect,
Area: Person touched
Duration: 1 round per level
Saving Throw: None
Spell Resistance: Yes

She is limited only by her own sight. Even though the caster can see the creatures or items in the astral or Ethereal Plane, she may not be able to effect them. Plus the creatures may not be able to see the caster. Any gaze attacks that can extend into the astral or ether will also effect the caster.

The material component for this spell is a bit of special blue power that the caster uses to draw an eye on her forehead.