Hangfire disguised as Colonel Colophon.

Colonel Colophon was a war hero from Stain'd-by-the-Sea. He gets injured in an explosion berore the unveiling of a statue, and Colophon Clinic is built to help him recover. It is said that he is covered in bandages. It is also hinted that he was thrown out of the window of the Colophon Clinic by Hangfire sometime before the events of the book When Did You See Her Last?