From A Wiki of Ice and Fire
|Book(s)||A Dance with Dragons (appears)|
A Dance with Dragons
Skinner flayed Theon Greyjoy's fingers for Ramsay Bolton. He is present in the great hall of the Dreadfort when Little Walder and Big Walder Frey bring "Reek" before Ramsay, who is joined by Arnolf Karstark and Hother Whoresbane.