The Great Book of Grudges, Dammaz Kron, is held by the High King Thorgrim Grudgebearer, but this is not the only such book. In fact, each Hold has their own book, as indeed do many individual Dwarfs. Actually this is only one volume of the many that comprise Karak-Hirn's collection of grudges. However, this is a unique volume because all the grudges described in its pages have been avenged!