"A mysterious dark statue made of a shiny black metal, which, surprisingly, shows no signs of rust."
This is a one-time treasure, found by using the clues from the "Legend of the Dark God" treasure rumor in the player's notebook. It is found in the Mangrove Maze in the Cortica River, but only when it is raining.
To activate the rumor pertaining to this item, the player must be salvage level nine or over, at which point the character FF will appear and request that the player find this item for him.
The appraisal rewards for finding this item are a Stone Tablet (an item the player can use to decorate their Private Reef) and twelve thousand pelagos. The player also gets the special air tank "Wyvern Wings".