Ships at sea depend on the wind for their sails to stay full. It helps them travel quickly, and the crew to survive.
Evil follows the young Corsairs, because they have so far been lucky in avoiding the worst.
When a tribal medicine man takes up the battle against them, he conjures up a myriad of ways to see them meet their end. One they are not ready to greet.
"Be a sad day when there be no faith left in ya, boy. When the rain burns yer skin, and the sky is a fire, be the day ye die, or get dang lucky."