Nondetection
(Player's Handbook v.3.5)Abjuration
Level: Sorcerer 3, Wizard 3, Ranger 4, Trickery 3,
Components: V, S, M,
Casting Time: 1 standard action
Range: Touch
Target: Creature or object touched
Duration: 1 hour/level
Saving Throw: Will negates (harmless, object)
Spell Resistance: Yes (harmless, object)
The warded creature or object becomes difficult to detect by divination spells such as clairaudience/clairvoyance, locate object, and detect spells.
Nondetection also prevents location by such magic items as crystal balls.
If a divination is attempted against the warded creature or item, the caster of the divination must succeed on a caster level check (1d20 + caster level) against a DC of 11 + the caster level of the spellcaster who cast nondetection.
If you cast nondetection on yourself or on an item currently in your possession, the DC is 15 + your caster level.
If cast on a creature, nondetection wards the creature's gear as well as the creature itself.
Material Component: A pinch of diamond dust worth 50 gp.