Well, earlier in the story a Sluagh was keeping pace with Zara and August as they approached the Duke's hold. Can't remember if that guy was working against our heroes or for them. You see, Duchess Cauly, Childling hero and leader of Cauly's crazed crusaders has a sluagh member of her motley named Slip. And he WAS reporting to her so they could save them bevcause they knew something weird was going on.