Dubrholm is one of the many independent towns at the base of the Dubrden Peaks mountain range. The area could be considered too cold for people to live in, if it wasn't for a crystal shard in the centre of town providing it with warmth. The shard's origin is unknown and Dubrden inhabitants saw a gift from the gods in it, making life possible where it wouldn't be ordinarily.
Era I, chapter 18 : Inhabitants of Dubrholm spot something moving in the mountains. The townguard investigates. Era I, chapter 20 : The crystal within the remains of the tower explodes, damaging the purple creature. Era I, chapter 31 : Chyriax, Oxyllia and Xeryan travel to Dubrholm to destroy the Mithri there.