You have a set of cards at each island. When the boat arrives at each island you play those cards so you have 4 hands. You can add cards to the different islands but you need to remember what is where. It can be impossible to win if you never go to the right island.
I am a big fan of Alan Ernstein's games. He says this is a buffing game and not a stock market game. He should know, but it is hard to see it when you first play it. It is a little too long. Rating could go up with more plays.
Very creative memory game. You roll 9 dice with various symbols in two colors (orange and black). Any that have a match on the orange and black dice are eliminated. In the end, you will have from 0 - 9 black symbols and 0-9 orange symbols left (usually a few for each side). Those form the 2 witches recipes. You then play cards from your hand to match the symbols on one recipe. But it is a speed game. The first person that wants to can shut the box. You then make your recipes from what you saw and remember. I really like it.