An island domain in the Shadowfell, the dominion of Dr. Daclaud Heinfroth. From here, he runs the Asylum for the Mentally Disturbed, which is surprisingly well-respected among Shadowfell denizens as a place of respite and healing.

Given that Bogdan Dorgumir suspects Dr. Heinfroth is a darklord, and Dominia is his Dread Domain, the reputation might not be wholly accurate.