Grottheim or a Low-lands is the first creation of Et’arī. Grottheim is ancient mighty mountains and dungeons that are inhabited mainly by goblins and trolls.
As far as Grottheim is Et’arī's first creation, it is made quite grossly - gloomy dungeons may seem unfriendly and even hostile at first glance.
Inside the dungeons, everything is connected in a complex network of tunnels and labyrinths. Since goblins and trolls can see fairly well in the dark and prefer night time, daylight is not a necessity for them. In Grottheim there are many dwellings and even small workshops, but rather primitive ones. Goblins and Trolls are not skilled craftsmen, but they are good at enchanting things with magic. Also, there are places where Goblin shamans can enter the spiritual world and mentally connect with almost any creature of the past.