

Snakes, deer, and wolves were all known to live in Sithicus. Despite the danger, explorers were known to travel there. Inza Kulchevich made her lair in its depths. Some sections were said to be bottomless, and fearsome creatures lurked within, some of which came out after the sun set. It ran dozens of miles from northwest to southeast, and was as much as 5 miles (8 kilometers) across at its widest point. Perhaps one of the most prominent features of the domain was the Great Chasm, which stretched across the central west region of the domain. The Giant's Cloak forest was full of nonlethal traps, and took its name from the stone giant and his allies who used the place to hide from Azrael and Inza's soldiers after those two took over the domain. There were at least three major forests that sprawled across most of the domain: the Giant's Cloak forest in the west, the Viper Nest in the center, and the tangled Fumewood that covered the east. The Krellin, Endless, and Musarde Rivers flowed into one another by Har-Thelen, in the middle of the domain. There were five major rivers that ran through the domain: the Little Arden River, the Widow's Tears, the Krellin River, the Endless River, and the Musarde River. Sithicus had three major mountain ranges: the Disappearing Mountains in the southwest, the Misttop Mountains in the southeast, and the Border Edge Mountains and the Iron Hills in the northeast.

Its southern borders were along the mists that enclosed Ravenloft. Sithicus was located in the southwestern region of the Core, bordered by Valachan to the east, Kartakass to the northeast, and Barovia, Invidia, and Verbrek to the north. The Guilt of Sithicus was a domain-wide, preternatural effect that caused guilt in everyone who entered Sithicus, as no one there could forget their misdeeds, causing the Sithicans to endlessly dwell upon their sins and flaws, and paranoia and paralyzing distrust were common in the inhabitants. As Lord Soth's prison, it was a place that perverted and twisted history and memory under Inza Kulchevich's rule, that property was reversed, causing the Guilt of Sithicus. Sithicus was a withdrawn realm of thick, tangled forests and jagged, rugged mountains.
