War is Coming
Asshai is a city on the far side of the explored world from Westeros. It is located in the far southeast of the continent of Essos, on the eastern shore of the Jade Sea. This places Asshai far beyond the Free Cities, the Dothraki Sea, and Slaver's Bay. Qarth is located closer to it, given that the Straits of Qarth form the western entrance to the Jade Sea, but it still takes many months for a ship to travel from Qarth to Asshai.
Little is known about Asshai save that it is a great seaport and its people are exotic. Beyond Asshai lies an area known as the Shadow Lands, which are said to lie "under the Shadow". What exactly is casting "the Shadow" is not known, nor is the exact nature of "the Shadow."
People and things from Asshai are known as Asshai'i. The Asshai'i language is unique, rarely heard in Westeros or even western Essos, and rumored to be used in powerful magic spells.
Under the Shadow: Accustomed to life in constant shadow, you have superior vision in dark and dim conditions. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can’t discern color in darkness, only shades of gray.