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 D20
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This article is a D20 reference page
The System Reference Document is a comprehensive toolbox consisting of rules, races, classes, feats, skills, various systems, spells, magic items, and monsters compatible with the d20 System version of Dungeons & Dragons and various other roleplaying games from Wizards of the Coast.
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Dust of Disappearance: This dust looks just like dust of appearance and is typically stored in the same manner. A creature or object touched by it becomes invisible (as greater invisibility). Normal vision can’t see dusted creatures or objects, nor can they be detected by magical means, including see invisibility or invisibility purge. Dust of appearance, however, does reveal people and objects made invisible by dust of disappearance. Other factors, such as sound and smell, also allow possible detection.
The greater invisibility bestowed by the dust lasts for 2d6 rounds.The invisible creature doesn’t know when the duration will end.
Moderate illusion; CL 7th; Craft Wondrous Item, greater invisibility; Price 3,500 gp.
System Reference Document -> Magic Items: Wondrous Items