A signed copy of this author's A Tale of Two Cities would set you back a cool £275,000 in 2014 (7)
I believe the answer is:
dickens
(Other definitions for dickens that I've seen before include "Charles . . . . . . . whose pen name was Boz" , "The Lord of the Flies" , "Oliver Twist author" , "Charles - - , novelist" , "Charles --, British author" .)