Glitterdust

•Range: Medium (100 ft. + 10 ft./level)
•Area: Creatures and objects within 10-ft.-radius spread
•A cloud of golden particles covers everyone and everything in the area, causing creatures to become blinded and visibly outlining invisible things for the duration of the spell (-40 penalty on Hide checks).
All within the area are covered by the dust, which cannot be removed and continues to sparkle until it fades.