Extremes
Kristine Kathryn Rusch
 During a marathon race that takes place on the Moon in the future, a corpse is discovered lying in the path the runners take. Noelle DeRicci, a detective, is sent to investigate. The corpse is initially identified as Jane Zweig, a famous business person who operates an extraterrestrial "extreme sports" corporation. Miles Flint, the retrieval agent who used to work for DeRicci, is almost simultaneously hired to also look for Frieda Tey, who they think has been living under the name Jane Zweig. Frieda Tey had been hiding from the results of her biological experiments. The most infamous being a virus that killed more than 200 subjects in an experiment that reminds this person of Josef Mengele. By the time that the police determine that the murder scene was staged, the fast-acting virus that Tey had used on Io was starting to affect the runners in the marathon.