Susanna Clarke won the Women's Prize for Fiction with her novel Piranesi. She joins James Naughtie and a group of readers to answer their questions about this intriguing, tantalising novel.

Bestselling novelist Ken Follett joins James Naughtie and readers to discuss his historical novel A Column of Fire, the third in his hugely successful Kingsbridge series. It’s a tale of spying and intrigue, as Elizabeth I battles to keep her throne in the face of fierce religious division across...