Berdna

Berdna, was of the three cities (along with Gardul and Fashein) comprising the Dwarven Gardul Free State. It was overrun by biters that erupted out of the earth into the Dwarven tunnels in 1041 BL. The Free State was reconstituted as the Greystar Commune under a tetrarch of military commanders chosen by advanced age and lot to prevent the destruction of the other communities.

Hibarnhvidar Albreda Shrine

From the meditation wall in Albreda's Shrine in outer Hibarnhvidar:

The artwork on this portion of the wall depicts an enormous beast credited as being the biter who took the lives of 500 Dwarves before being killed in the tunnels by the Berdna Dwarves.