Broadcaster Michael Mosley; singer and actor Camille O'Sullivan; Baptist minister and writer Peter Laws and artist Pradyumna Kumar join Libby Purves.

Peter Laws is an ordained Baptist minister who has written his debut crime novel, Purged. The protagonist is Matt Hunter, a sociology professor who also assists the police tackle religiously-motivated crimes. Peter also hosts a podcast and YouTube show, The Flicks That Church Forgot, which reviews horror films from a theological perspective. Purged by Peter Laws is published by Allison and Busby.

Pradyumna Kumar, known as PK, was born in a remote part of Orissa in eastern India. His childhood as an untouchable was one of hardship and prejudice. Yet during these years, he kept a palm leaf bearing an astrologer's prophecy: 'You will marry a girl who is not from the village, not even from the country; she will be musical, own a jungle and be born under the sign of the ox'. It was a prophecy that would come true, but only after a 7,000 mile journey that would take him across continents, on a second-hand bicycle, to be with the woman he loved. The Amazing Story of the Man Who Cycled from India to Europe for Love by Per J Andersson is published by One World.

Camille O'Sullivan is a French-Irish singer and actor who is known for her dramatic interpretations of the narrative songs of Jacques Brel, Nick Cave, David Bowie and Radiohead. As an actor she appeared in the Royal Shakespeare Company's Rape of Lucrece, for which she also created original music with Feargal Murray. She also starred in Mrs Henderson Presents alongside Judi Dench and Will Young. She is touring the UK with her new show The Carny Dream, starting in Oxford on 3 March.

Michael Mosley is a journalist and presenter. In his new series The Secrets of Your Food he joins James Wong to celebrate the physics, chemistry and biology at work inside the food we eat. Born in India, Michael worked as a banker in the City of London before studying psychiatry. He then joined the BBC, producing a range of science programmes and later moving in front of the camera. He begins his new series in the laboratory where he deconstructs breast milk and travels to Mexico to study the intake of a professional Lucha Libra wrestler - it involves 50 eggs a week. The Secrets of Your Food is broadcast on BBC Two.

Producer: Paula McGinley.

Michael Mosley, Camille O'Sullivan, Peter Laws, Pradyumna Kumar