 Jack, however, is not at all daunted by the foul breath claiming it is "Not so bad," and deliberately leaps into the Kraken's jaws, trying to kill it.Davy Jones, ruler of the seas, summons the Kraken to destroy vessels.On-board his ghostly ship, the "Flying Dutchman," is a massive capstan with a carved Kraken on the top, the so-called "Kraken Hammer".