In 2099, Dr. Lethus was Oderon City's preeminent geneticist. He was assigned to study the incredible being known as "Achilles" following its capture. Dr. Lethus’ time with Achilles changed the focus of his research forever. He came to the conclusion that Achilles' genetics were fantastically different than any normal human. After several weeks of study and numerous conversations with Achilles, Dr. Lethus came to the conclusion that Achilles was not the only of his kind, and Earth is likely to be home to an array of non-human intelligent species.