Small Ferret was the Wit-companion of Big Ferret. Black Rolf had given them the task to aid Fitz. Big Ferret had died, but had told Small Ferret to continue on their mission, so he had been travelling among Will's possessions until he met Fitz in the town of Blue Lake. He warned Fitz of the trap Will had set for him and told Fitz that his ultimate goal was to kill Old Blood-Hater - Regal. In the end, it seems that Small Ferret did just that, although Regal's bloody demise in his own bed was blamed on a large river rat. The rat was never caught and caused a lot of worry among the court, which is why some said that afterwards Lord Chade kept a pet ferret with him.