Thelestes

Thelestes the Velvet Blade is one of the non-rakshasa members of the Lords of Dust.
  The succubus known as Thelestes traveled to Eberron from Mabar, The Endless Night some 20,000 years ago, fleeing a feud with the ultroloths of that plane.
  The embodiment of murder and death, Thelestes serves the prakhutu Kashtarhak, the Voice of Chaos. Murder is Thelestes' personal joy, and she prefers to kill more frequently than her service to the Lords of Dust sometimes permits. She may lend her skills to aid in the schemes of other councilors on the Bleak Council.
  A master of disguise and seduction, Thelestes has many aliases placed deep within House Phiarlan, House Thuranni, and a number of smaller thieves guilds. She spends her time as an agent of the Lords of Dust, reveling in playing a part in the corruption and death of the mortals around her.
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