This spell enchants one item touched so that it becomes invisible, immobile, and intangible to everyone except to creatures of demi-god or higher status, to the caster, and to the item's true owner. (Thieves, beware!) It remains this way until someone moves the item, at which point the spell ends. The item must be at least touched by the caster while casting the spell, and she may place it anywhere, even in open air- it will not fall. Saving attempts and spell resistance rolls may be made when the item is held by an unwilling party, or if the item itself is intelligent and unwilling.
If the item has no true owner (such as a tree in the woods, or a rock in the road), then the caster is considered the owner.
A maximum of 10 square yards can be masked by this spell, with no weight limit, as long as it is smaller than the maximum size and is one integral unit (e.g. a door with a window and two locks and hinges, a bag with 100 gp inside, but not three wagons stacked on each other, two bricks held together by an Unseen Servant, or a large block that's a part of a wall.)
This spell was originally designed to settle claims between fueding people claiming to own something the other stole. The priest would cast Ownership on the item and the rightful owner would come up and be able to take the item home.
Material Component: A hair and a toenail clipping from a baby or small child that was held upside-down for the clipping.