This is a song with an... odd, effect.
Upon starting this song a battered 17th/18th century sailing frigate appears and asks for the ship Doug's on to deliver some letters for them. If the ship does not do so nothing happens.
If the ship does, the weather steadily gets worse but the winds push the ship faster and faster to its destination. At this point it's also committed; it either reaches safe harbour or everyone on board dies. Anyone who fails a Sailing check during the pursuit either dies or suffers severe injury. And because the weather gets worse and worse the difficulty of the checks keeps rising.
On the one hand, this is a risky song to use.
On the other, if you need a ship to get somewhere fast, or at least faster than it should it might well be worth the risk. Whether or not those who die are damned is unknown.
