Gleamhound first appears in Chapter 3 of Uncle (book). His full name is Thomas Clatworthy Spencer Libertas Sweetwater Clanjohn Brewage Templetonjoyce Gleamhound - but, Martin tells us, "he is nearly always called the Old Man". He is "perfectly bald and (wears) immensely strong glasses over his inflamed eyes". He lives with Eva, his assistant/companion, at the top of Homeward Tower where they produce a range of medicines and potions which have the unusual property of working backwards - for example, his Faintness Producer for Burglars acts as an excellent stimulant. His Jacob's Well Eye Salve can put your eyes out of action for weeks, while his Punishment Eyesight Irritant (for enemies) will often cure people of the need to wear glasses.