Undetectable Alignment

(Player's Handbook v.3.5, p. 297)

Level: Bard 1, Beguiler 1, Dread Necromancer 1, Vigilante 1, Death Master 2, Knight of the Chalice 2, Vassal of Bahamut 2, Ebonmar Infiltrator 2, Paladin 2, Cleric 2, Jester 2, Liberation 2,
Components: V, S,
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Target: One creature or object
Duration: 24 hours
Saving Throw: Will negates (object)
Spell Resistance: Yes (object)

An undetectable alignment spell conceals the alignment of an object or a creature from all forms of divination.