You can gain a lot of Silver from trading. 

Follow the steps below from the Trade Warehouse to trade.

■ Steps on Trading

1. Check price info at the Trade Warehouse and sail your fleets to a city.

2. Enter the city and buy cheap or recommended trade goods.

3. Sail to another trade city that wants your trade goods at a higher price.

4. Enter the city, check your profit, and sell it!

5. Return to your base to retrieve your trade profit.