| Category | Lakes |
| Continent | Brucrumus |
| Region | Clans |
| Map | Narbuzad |
Lake Bul is situated in the northern reaches of the Khizunul mountains. Its shoreline is a perilous place to traverse, and its depths pose an even greater threat. This is due to the fact that during the Demon Spawn War, it was stocked with specimens imported from the Abyss.
It is said that Yeenoghu had an insatiable craving for fish and other aquatic delicacies of his abyssal home. When his forces captured the area around Lake Bul, he had his minions stock the lake with abyssal specimens. As his forces faltered in the Demon Spawn War, they were forced to abandon the eastern tracts of the Clans and his beloved fishery. Some of the creatures his minions placed in the lake were intelligent, like the dim-witted skulvyn. These bestial demons normally haunt the fetid seas of the Abyss. Out of either lust or macabre mortal experiments, they mated with gnolls and other mortal humanoids, resulting in a population of aquatic cambions. These half-demons are perhaps the most formidable foes of Lake Bul and the surrounding region. Over time, some have cajoled Gnoll tribes into paying tribute and even serving them. An order of demon hunters called the Khalag Narkûn is based out of Dul-Kiz. This organization was established to address the demon problem plaguing Bul. Demons from this area have been encountered as far as Lake Kapha-Lak.