Rilack was a mining colony on the planet Tirol. In 2022, the Invid Regent attacked Tirol with his Inorganics and one of their 1st areas of attack was Rilack. Rem considered warning Rilack but Cabell advised against it as to not give away their position. Despite attempts from Bioroids to defend it, Rilack fell to the vast numbers of Invid. [citation needed]