Chakos
Chakos Vrinn was a sa'har consular in the Sa'har Order who lived during the time before Earthfall. When some elves fled Golarion and others made their way underground, Chakos used his power of the akasha and created a pyramoid pocket dimension. He then hid the pyramoid within the Celwynvian library and entered his own little world. Time was altered within the pyramoid, giving Chakos immortality as long as he remained within the construct.
Through manipulation of the akashic tapestry using a corrupted void pyramoid, Lasdolon attempted to invade Chakos’ demiplane. He was able to do so, but at great cost to Chakos. The connection between worlds, the akashic tapestry and the dark tapestry, cause Chakos’ demiplane to slowly unravel. Even after the connection was severed, the damage continued. Chakos watched helplessly as his world began to be consumed by the darkness of the dark tapestry. His sanctuary had become a prison. His immortality had become a death sentence