From introduction: Fragmented Sanity was originally written as the first adventure in the Myth(os) Busters campaign. This version of the adventure has been edited down into a shorter, stand-alone adventure for use at conventions of one-off roleplaying sessions. It cuts out all of the Earth-based investigation and moves the action directly to Mars. Suggestions for pregenerated characters can be found in Appendix B at the end of the adventure. Fragmented Sanity is designed to be played by a small group of investigators (2-4 being optimum), with connections to a major corporation. Cenargo Corporation is used, but Keepers should feel free to change this to suit their own campaign.