Gwin is a horned marten, belonging to the fire-eater, Dustfinger, fictional characters from Cornelia Funke's novels Inkheart and Inkspell, and soon Inkdawn. Gwin is somewhat ill-tempered and has taken a liking to Farid, Dustfinger's apprentice. Dustfinger and Gwin, along with the evil Capricorn and Basta, are accidentally read out of the book they came from (also called Inkheart) by Mortimer Folchart, also known as "Mo" and "Silvertongue."