Sunday Times and New York Times bestseller, Joe Hill, joins Sara to chat about his epic new novel 'King Sorrow'.

This book has been 10 years in the making and, as Joe explains, is the first novel he published after getting married to his wife - so wanted to impress her.

Sara and Joe chat about his inspirations behind the book, how his family (all of whom are writers) share their work with each other, and why he has now chosen to write a book a year. (no more 900 pages for a while!)

We also get to hear a clip from the audiobook, and a book recommendation too.

Here's a little more info on Joe's novel: Bookish dreamer Arthur Oakes is a student at Rackham College, Maine, renowned for its frosty winters and beautiful buildings.

But his idyll - and burgeoning romance with Gwen Underfoot - is shattered when local drug dealers force him into a terrible crime: stealing rare and valuable books from the exceptional college library.

Trapped and desperate, Arthur turns to his closest friends for help: the wealthy, irrepressible Colin Wren; brave, beautiful Allison Shiner; the battling twins Donna and Donovan McBride; and brainy, bold Gwen. Together they dream up an impossible, fantastical scheme that they scarcely imagine will work: to summon the fabled dragon King Sorrow to kill those tormenting Arthur.

But the six stumble backwards into a deadly bargain - they soon learn they must choose a new sacrifice for King Sorrow each year or one of them will become his next victim. Unleashing consequences they can neither predict nor control, this promise will, over the course of four decades, shape and endanger their lives in ways they could never expect.