Dan Brown's best-selling thriller The Lost Symbol has topped the book charts for Christmas.
The "unstoppable juggernaut" of a book will be in the top slot on Christmas Day after clocking up the most sales last week, retailer Waterstone's said.
The Lost Symbol pulled clear of its rivals after facing stiff competition from Guinness World Records 2010, which was number one last week.
Eclipse, the latest in Stephenie Meyer's Twilight saga, placed third.
"The Lost Symbol broke every record when it was published - biggest and fastest-selling adult hardback fiction title, biggest-selling eBook, biggest print run from publisher Transworld," said Waterstone's fiction buyer Janine Cook.
"It's not been far from the top of the charts since publication, and it's a great gift, which is why it's back on top."
Brown last topped the Christmas book chart in 2004 with the paperback version of The Da Vinci Code.
The book was later made into a film, starring Tom Hanks, followed by one of his earlier books, Angels and Demons.
Alison Barrow, of Transworld Publishers, said Brown's continuing popularity was "truly phenomenal".
"It has been a most uplifting experience for everyone involved in the publication of The Lost Symbol and we feel very privileged to have been a part of its success," she said.
"To be Christmas number one is very exciting indeed."