[jeff_wilson]

Another plot complication is fire, to destroy DNA and other trace evidence. This will probably have to be arson given TS tech and the motivation to prevent hotel fires and spacecraft fires, but it need not look like obvious arson. It can also be used to kill/attempt to kill/discourage investigators, especially amateur ones, and it's possible it can damage life support, threatening everyone. "We have half the oxygen reserve still available, slightly less than necessary." And don't forget to include the plaque by the internal lifts: "IN CASE OF FIRE, DO NOT USE ELEVATOR"