Yuri Petrov was a terran archeologist. He possessed exceptional credentials, working on "cushier assignments" when compared to excavations on worlds such as Gelgaris. In 2503, Petrov was assigned by Mr. V with other intellectuals to a team led by "maverick" archeologist Jake Ramsey, heading for an alien relic on the world of Nemaka. The constant, never changing nature of the artificial climate was frustrating to him, but regardless, entry to the relic was eventually achieved by Ramsey.