Yes, the author of The Remains of the Day and Never Let Me Go has written a book in which Sir Gawain, “now an old man responding – just like John Wayne in The Searchers or James Coburn in Pat Garrett and Billy the Kid – to one last call to arms. ‘Dressed in rusted chainmail and mounted on a weary steed’, Gawain’s ‘sacred mission’ is to slay the she-dragon Querig.”