Siy Tarkov was an envoy for the Galactic Union. He travelled to Velyshaa twenty-five hundred years after the Great Catastrophe 2500 years earlier. He sought Saloran Haredew and her discoveries of what had caused the Great Catastrophe and the Daleks, who had dominated the galaxy some twenty-five hundred years earlier. While there, Haredew presented "psychic recordings" left to her by Kalendorf, showing him the last years of the Daleks' domination of the galaxy and their war against Daleks from a parallel universe. (AUDIO: Dalek War: Chapter One, AUDIO: Dalek War: Chapter Four)