Her expression went blank for a moment before she smiled slightly. It was now she realized that even she didn't know. "That's the best I can give you. I don't know how it works, just what it does. It turns the user into a loyal soldier who will do anything to complete their mission. Or at least it does to my people." She stopped briefly to see his reaction, if any. "It was a weapon used a hundred years before I was born. Their use was banned after the war they created. I had no idea any still existed until Ben and I found it in the ship that brought me here." Her expression told she wanted to say more but she didn't because it wasn't relevant.