A desolate and snowy wasteland that sits on floating icebergs, Tahgira was written as a prison Age. The worst of the D'ni criminals would be sent there to live out the remainder of their life; their graves are visible at the end of the Age. The prisoners confined to Tahgira built during their stay a comlex system to heat parts of the Age. The heating system can be used to a great advantage as it attracts heat-loving bacteria which can then be walked upon. The Tahgira Slate, when used properly, can heat the Age, thus warming various frozen controls vital to the heating system.