|Founded||12 Lunar 8987 GE|
In the Demon Spawn War, Blibdoolpoolp was pressed into service under the demon lord Athroond. She went to Bal-Kriav, joining the demon invasion of the Quara'tun System. Blibdoolpoolp convinced Athrood to give her space so that she could create armies for him. In sector Chaexidor, Blibdoolpoolp's aboleth army built an underwater citadel called Oomkaan. It was named in tribute to the head aboleth surgeon that created her; one who quickly became her first meal.
Oomkaan's initial purpose was to serve as a prison for captives destined for the Toadoolp Twists. In the Demon Spawn War, these areas of entropic energy were used to transform captives into the first kuo-toans. As their numbers steadily increased, Oomkaan became the first major settlement of the kuo-toan people. After their numbers reached about 10,000, and on orders of their mother creator Blibdoolpoolp, the kuo-toa instigated a bloody purge across Blibdoolpoolp Bosom, slaying all the lake's aboleth. After this, and for the rest of the Demon Spawn War, they warred with the demons who sought to bring Oomkaan back under their control.
When Blibdoolpoolp left Oomkaan to spread her progeny across the Mortal Systems, the kuo-toans were nearing complete control of the area around them.