The Izhoven River descends from the high plains of northern Zazahni, draining the savanna into a vast jungle, known to locals as the Emerald Sea. Early river navigators so named it because far upstream they could see the green of the vast rain forest off in the distance and believed it was the sea. Covering nearly 150,000 square miles, Vohven is a massive and largely uncharted wilderness. Human and humanoid tribesmen live there, in great numbers, along with all sorts of wild beasts. Tribes of intelligent vegetable creatures also inhabit an area of the jungle.