Thoughtsense

Divination [mind-affecting]
Level: Sorcerer */Wizard * 5
Components: V, M (a bit of dried brain tissue)
Casting Time: 1 Standard Action
Range: personal
Target: you
Duration: 1 minute/level
Saving Throw: -
Spell Resistance: -
  You automatically detect and locate conscious creatures within 60 feet, as if you possessed the Blindsight ability. Nondetection, mind blank, and similar effects can block this effect. Thoughtsense can distinguish between sentient (Intelligence 3 or greater) and non-sentient (Intelligence 1-2) creatures, but otherwise provides no information about the creatures it detects.