That same evening the flea settled into the mangy coat of a rat, an old male, the veteran of many rat fights, testified to by one ear chewed off right by its skull. That same evening the flea and the rat embarked on a ship. And the next morning set sail on a voyage. On a barge; old, neglected and very dirty. The barge was called Catriona. That name was to pass into history. But no one knew that then.