He can first be encountered in Borlis Pass after having been caught by the Stone Summit forces in Maladar's Fort, where he learned of a plan to unleash an Ice Drake on Grooble's Gulch. When he is freed, he beseeches the player character to find and kill the Ice Drake. He is soon captured again on the path to the Frost Gate while trying to steal the Stone Summit's Secret Siege Weapon Plans. He is left in a dryder cave, and when rescued he enlists the player character's help to steal the plans, and repairs a Stone Summit ballista to blast open the gate protecting them.
He can be found a third time, much later, in the Ice Caves of Sorrow, this time a prisoner of the Mursaat after he was caught scouting for an alternative way into the White Mantle prison camp. When he is freed once more, he asks that Hamdor Grandaxe's rescue party be told where he is.
- Rornak is likely related to Minaar Stonesledge, another Deldrimor dwarf who can be rescued from Stone Summit captivity.