And more's the pity. Klabautermann are good luck. Some say they're kobold, or gnomes that help out around the ship. Others say it's the spirit of the ship itself given physical form because of the deep bond between the ship and the crew it carries. Klabautermann help keep ropes tidy and do small repairs, but they are invisible to the crew. Unless, of course, the ship is doomed. Only then can the crew that loves it so see with their eyes its physical manifestation, and hear the ship's voice singing clear above the waves. Perhaps you'll eventually sense one on the Sea Princess, if you can learn to love her well enough.