k25ff:

Hadelmach, The Twisted. It is in her nature to labour unceasingly, to reap what she has sown, and to dwell in pristine darkness. She is the patron deity of the Sunless Isles, a society of Gaunts that, despite their worship of an evil god, threw off the rule of their God-Emperors (distantly descended from Hadelmach herself) in revolution, and now are far friendlier to outsiders than they used to be. Hadelmach’s more ‘positive’ influences and rituals have become preeminent among the cold, rain-soaked cities of the Isles, and what effect that will have upon the goddess over the centuries remains to be seen.

The Sunless Isles are a very interesting and friendly place.