Ken Follett's made a name for himself as an author of historical epic novels - and he's got a new one out.

After starting his career as a thriller writer in the 70s, Ken’s decision to write The Pillars of the Earth in 1989 set his career on a different trajectory, and it paid off.

Pillars has sold over 27 million copies and to date remains his most famous novel - and his total book sales now sits around 198 million copies globally.

Ken’s latest book, Circle of Days, is another historical epic built around the mysteries of Stonehenge.

"They didn't leave anything written, they didn't do many cave paintings and so all we've really got is what the archaeologists dig up out of the ground. My policy is - I find out what's known, what the historians feel confident about. And what isn't known, I'm entitled to make up."

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