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Pebbles are an attack item in Paper Mario. They are found on Shiver Mountain and can be thrown at enemy monsters, but are used best as substitutes for more valuable items in caves on Shiver Mountain. In a certain area, items keep open doorways and if the item is taken, the door closes. Pebbles can be traded for those items. They are purchasable in Bowser's Castle at a price of 20 coins.
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