Northern lights - BBC Radio 4 Full-cast Dramatisation

Philip Pullman's thrilling fantasy comes alive in this BBC Radio 4 full-cast dramatisation.

The award-winning "His Dark Materials" trilogy is a breathtaking epic adventure spanning a multitude of worlds. "Northern Lights", the opening instalment, sees Lyra and her shape-changing daemon embark on a dangerous quest.

In Oxford, Lyra learns that children are being kidnapped by the mysterious Gobblers.

When her friend Roger vanishes she determines to find him, and is given a powerful alethiometer which can reveal the truth in all things.

After discovering that the adults around her are not what they seem, Lyra and Pantalaimon join forces with a band of gyptians.Travelling north they encounter witch-queens and armoured bears, before being captured and taken to Bolvangar - where children are being used in terrible and secret experiments.

Gripping, full of suspense and often funny, "Northern Lights" has an all-star cast including Terence Stamp, Emma Fielding, Bill Paterson, Kenneth Cranham and Ray Fearon.

It is now a major motion picture, "The Golden Compass", starring Nicole Kidman and Daniel Craig.