Born in Invern and sibling of Frost and Sleet, a young Gelid was named directly after their father. Something they grew to despise as they grew up. They were close to Frost and the two ran away together. Absolutely shattered when their brother "taken away" from them for a mission, and the two were permanently separated. This destroyed Gelid mentally, and the cat grew more hostile and isolated. They now hold a violent grudge towards anyone associated with and related to the other mission cats. In their rage, they renamed themselves to Oil, refusing to carry the name of their father any longer.