Nondetection

Nondetection is an abjuration spell that hides the subject from divination and scrying.

Effect
The warded creature or object becomes difficult to detect by divination spells such as clairaudience/clairvoyance, locate object, and detection spells. Nondetection also prevents location by such magic items as crystal balls.

If cast on a creature, nondetection wards the creature's equipment as well as the creature itself.

Material component
A pinch of diamond dust worth 50 gold pieces.