Players need to have all three scraps in their inventory, and then use one scrap on another to form the complete Treasure map.
One map part can be found in a chest on the lower level of the Ghost pirate ship wreckage opposite the farm between Frankenstrain's castle and the Ectofuntus and Port Phasmatys. When you open the chest a level 32 Giant lobster will attack you- kill it and search the chest again.
Next, climb up the ladder on the ship and cross the gang plank (to the north) jump from rock to rock in the following order: North, West, West, North, North, West. And open the chest on this last rock, then jump back the way you came to get back to the pirate ship.
Finally Search a chest on the first floor of the ghost pirate ship. To open the chest, you need a Chest key.
Use it with the other two map pieces to make a Treasure map.