See the UnseenSpell 2
Source Pathfinder Player Core
Traditions Arcane, Divine, Occult
Cast

Duration 10 minutes
Your gaze pierces through illusions and finds Invisible creatures and spirits. You can see invisible creatures as though they weren't invisible, although their features are blurred, making them Concealed and difficult to identify. You can also see incorporeal creatures, like ghosts, phased through an object from within 10 feet of an object's surface as blurry shapes seen through those objects. Subtler clues also grant you a +2 status bonus to checks you make to disbelieve illusions.
Heightened (5th) This spell has a duration of 8 hours.
Spell Effect: See the Unseen
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
ConcentrateAn action with this trait requires a degree of mental concentration and discipline.
ManipulateYou must physically manipulate an item or make gestures to use an action with this trait. Creatures without a suitable appendage can't perform actions with this trait. Manipulate actions often trigger reactions.
RevelationEffects with this trait see things as they truly are.