Once an agent of the dragons of Argonnessen, Keshraa was mind seeded by Lady Sharadhuna of the Thousand Eyes. Draconic discipline, an indomitable will, and the innately slippery thoughts of the changeling were pitted against quori power, and a new being arose in the aftermath, one who had the memories and cunning of the kalaraq spirit but no loyalty to Dal Quor or Argonnessen. Now calling himself Keshraa, this changeling eluded his captors and disappeared.
Keshraa is a mastermind engaged in a complex and ruthless vendetta against the quori who created him. Although he frequently works with rebels and dissidents, he is utterly amoral and doesn't care what happens to the Inspired, Riedra, or Khorvaire. His only interest is the game he is playing with Lady Sharadhuna and the Thousand Eyes. He might help those who are working against the Inspired, but Keshraa does nothing out of kindness. If he provides assistance, that help is serving his purposes.
This rebel changeling could hold influential positions in any of the dissident groups described in the Plots section, though he considers these groups to be nothing more than tools. He might appear out of nowhere to help PCs in their hour of need, wearing the face of a priest, a soldier, or even one of the Inspired. He has absolutely no regard for human life. Still, in Sarlona, the help of a villain might be the best one can hope for.
Keshraa has turned a number of Chosen against the Inspired, and he could serve as a mentor to a Chosen PC. He claims to see a reflection of himself in the character— the vessel turned against the Inspired. Does he truly have an emotional bond with his protege, or is this one more ruse intended to create a more effective weapon?
When dealing with Keshraa, remember that he has the cold cunning of a prince of nightmares, and that he has successfully eluded the Thousand Eyes for almost a decade. His intellect is a far greater weapon than his psionic powers. If he is forced into battle, something has gone terribly wrong for him.