Jeff Short chats to Cole Moreton who has an impressive journalism career. As chief feature writer of the Sunday Telegraph he produced reports, features, analysis and comment on major events from the Olympics to the death of Nelson Mandela.

Cole: Well, I've seen a lot of stuff. I've seen a lot of dead bodies. I've seen a lot of awful situations and I've interviewed a lot of families in crisis and seen a lot of suffering. But I've also seen a lot of inspirational things and seen people who've got strength from somewhere they didn't know they could get it from. And seen people who have dared to believe that things could change.

The character I haven't mentioned, Sarah, is in this situation where she is having fertility treatment and in that awful moment, I know it only too well from experience, where she's had her last shot at it, she can't afford any more and she's waiting to see if it's going to work. There's a two-week period where you have to wait and it feels like twenty years. She's in that moment and she has run away to her happy place which is the South Downs to be on her own, away from her partner, for reasons we understand in the book later. She is faced with a choice and the choice is does she in that moment dare to believe that something can change. I'm not talking about whether she dares to believe that her prayers have been answered and she will have a baby; that's almost incidental. She has to choose whether or not to believe that life can change and she can survive this moment, whatever happens, whether there is a baby or there isn't a baby.

In the book, I parallel that with the story of Abraham and Sarah when the stranger, who may or may not be God, comes to their encampment and says in a year's time you're going to have a baby. Sarah, who is old and barren and has made disastrous attempts to have a baby, has to decide whether or not she can believe in this madness, whether she dares to believe that things can change. I think that's a choice that we all have to face. That's the central dilemma of the book.

Jeff: It is. Gosh, and when you give the back-story to it, it becomes even more compelling for me. Do you have people in mind when you write a book like this? What would you hope the result of someone reading it might be?

Cole: 100% Cross Rhythms listeners, Jeff. If you're listening to this and you're not Jeff, you're listening on your radio or whatever, it's you I want to read the book. Please get hold of a copy! And I'll tell you why, because on one level you can read it as a fast moving story about some people caught in a strange situation where they have to decide whether they can move on or not.

But on another level, for people of faith, there are whole different resonances and bits of symbolism and meanings that refer back to what you know from the bible and that will make it a much deeper and richer experience.

And what do I want people to have? Well, I don't want you to read it, I want you to feel like you're inhaling it, I want you to feel that you're part of that world without you even thinking you're reading it. That's the effect that I worked hard to achieve. And I want you to be moved but ultimately I want you to be uplifted and believe in change.

Jeff: And there's an album that accompanies it.

Cole: Yes, we only just got it together. A musician called David Perry and I have been writing a set of songs over the last six months that respond to the characters in the Light Keeper. You can get the album on iTunes and Spotify right now. The album is called the Light Keeper; the band is called the Light Keepers. With the album you get readings from the book and songs inspired by the book.

Jeff: Brilliant. And the book's available at all good bookshops?

Cole: And some terrible ones, yes. It's generally available; get out there and get a copy. You can get it directly from the publisher, Eden.