OK look when you get to all islands you have to trade them
you go around to each place and sell your cargo
yes you have to keep selling cargo and trashing boats the boats get you more cargo and for more go to YouTube type in poptropica how to get doubloons they have alot of videos thank me when you see it
do you mean skullduggery??
youtube
You don't!
dragon cove
skullduggery island!
under the bridge on skullduggery
solve the mystery
a map piece
5128904
you can get one on skullduggery island