It was the third straight day of rain that did it. People had been cooped up for days, riding out the storm, and Black Jack is sure that a flurry of human misery, or as he likes to call it - rent money is on its way. But when he turns out to be more right than either he or Trixie could have guessed, they find themselves on an island in the middle of the city, with the water rising fast. An island of the "gaudy, hard-boiled metaphor" variety, admittedly; but sometimes that's the way it goes.