Son of Dwâin, a noble Dwarf of the Line of Druin, Rhûrin lived a solitary existence, experimenting to create the perfect armor for his endangered tribe. His vital work was interrupted by Orc-wars and Giants and even a Balrog, but he resumed, and at his death in mid-Second Age, had neared success. The collapse of the Rûrîk Kingdom doomed the continuation of his meticulous research, which was lost in the chambers where he passed most of his 158 years.