Sword net 3 Where is Windsor, the salt-free island?

There is a man named Jiang at the gate of the copy of Salt-free Island, who will receive a task of "colluding with others", give you a task item of "Blood Duck Dart" (it seems to be this name), then push down the BOSS, push down the third Du, right-click the task item, and then you can see Windsor running out.