Rodorsceaft: Pillar of Heaven
The Barrens refers to an entire branch of Mother Tree, once home to the kingdom of Moros, destroyed by Defiler magic and left a desolate ruin. From a short distance away from the trunk out to nearly the tip of the branch, not a single thing grows or stirs. There is no water, no arable land, no sign of life. Not even the Wildlands located there remain fertile.
The Barrens is a land of harsh winds and blowing dust. It is extremely inhospitable to life; it was until recently considered to be uncrossable. However, with the invention of long-range airships by the Mechanists, crossing to Ainugo is possible. This development is less than ten Gnomish years old; the Barrens and the land beyond remain a mystery to most.