This quote from F. Wesley Schneider
Just you wait and see. I really like the Sleepless Agency and have future plans for them. For now, there's a little bit more about them in Rule of Fear, but not much. Until I have the opportunity to say more, look up the Pinkerton Agency on Wikipedia and let your imagination run wild.
Led me to beleive that the Sleepless Agency would be playing a role in Carrion Crown.
Has anyone been able to find details on them at all in the books? If not, I'll just have to start making up my own stuff based on the Pinkerton National Detective Agency. Because I really like the concept and would love to provide the players with an opportunity to be a member.