Undetectable Alignment

Abjuration
Level: Brd 1, Clr 2, Pal 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.