The Identical Twin sisters Karen and Jess Whateley, came to Serenity to get away form their family roots and to strike out on there own. The used their money and built the Summer Moon. They saw that the Mayor was up to no good after he found the Fountain, and decided to help protect the town and keep the folks has save as they could. The only way to really tell them apart is the the way that they wear their hair and they well where different colors or Jess will have a locket around her neck so that the people of the town can tell them apart