Abolethic Sovereignty The Abolethic Sovereignty were the original aboleth s of the Realms , who dwelt in the flying , obelisk - shaped city of Xxiphu , that has existed since prehistoric times . The Abolethic Sovereignty originally came to Abeir - Toril when the world was young , when Xxiphu plummeted to the world and settled deep below what is now the Sea of Fallen Stars . The oldest - known aboleth and possibly the progenitor of the entire species , the Eldest , was an enormous creature that rested atop the city like a throne . When Abeir - Toril was sundered into two twin planets , Abeir and Toril , the city of Xxiphu remained on Abeir . During the Spellplague , Xxiphu was transported to Faerûn , and the members of the Abolethic Sovereignty took great interested in the world of Toril . The main goal of the Abolethic Sovereignty was to unlock the Far Manifold with the " Key of Stars " and open the gate to the Far Realm to unleash their masters onto the world . They were also greatly interested in the effects of the Spellplague , and searched and studied areas of active Spellplague across Faerûn . The aboleths kidnapped many living creatures for their ambitious experiments to improve of the dreaded Symphony of Madness . Xxiphu was a mobile city , and that allowed the Abolethic Sovereignty to operate throughout all Faerûn . However , they focused their efforts on the region of Sea of Fallen Stars near Akanûl and in the Underdark below Neverwinter . They also held total control over the city of Olleth . History . In 1396 DR , Xxiphu was raised over the Sea of Fallen Stars and the Sovereignty forced the kuo - toa into their service , by calling " Come to me , children of Toril , and serve . " Shortly after its raising , Malyanna moved Xxiphu to the Citadel of the Outer Void on the fringe of the Feywild to open the gate to the Far Realm , but failed . In 1429 DR , Xxiphu returned from the Citadel of the Outer Void to the sky above the Sea of Fallen Stars . Not long after , members of the Abolethic Sovereignty moved against Akanûl and destroyed the city of Brassune before the genasi could repel the aboleths . In the following decades , a branch of the Abolethic Sovereignty became interested in a pocket of Spellplague in the Underdark below Neverwinter and began to use it to further the experiments that would aid them to create the Symphony of Madness . In 1479 DR , the Abolethic Sovereignty was investing their efforts to thwart the New Neverwinter movement or to used it to advance their own agenda . They also were interested in controlling the primordial Maegera , and for that reason enslaved the mind flayer s of Gauntlgrym in an attempt to control the old mine and eventually control Maegera as well . Membership . The aboleths of the Abolethic Sovereignty were unlike the normal aboleths native to Toril . The aboleths of the Sovereignty were far older and had though patterns different to those of the Torilian aboleths . Torilian aboleths usually avoided , or even opposed , aboleths of the Sovereignty . It was believed that aboleths of the Sovereignty were in fact the ancestors of the Torilian aboleths . For their covert operations , the Abolethic Sovereignty used the Symphony of Madness to control humanoid s in subtle ways , making them excellent spies and sacrificial pawns without arousing suspicions in people around them . The rest of the servants of the Sovereignty were aberrant creatures : foulspawn , grick s , grell , kuo - toa , kraken s , mind flayers and nothic s . Among their most notable members were :