DALLAS – Spider-Man was already the star of the most expensive comic book ever sold at auction. As of January 13, the Web-Slinger is also credited with what is now the world’s most valuable page of original comic book artwork. Page 25 from 1984’s Secret Wars No. 8, which tells the origin story of the Web-Slinger’s now-iconic black costume, sold at Heritage Auctions for $3,360,000.