A school camping trip to Snowdonia spells trouble for Sarah Jane and her friends, as they find themselves stranded in a harsh environment. What shadowy figure is watching them? How can Rani be in two places at once? And what secret does a nearby cave hold?
Elisabeth Sladen narrates the story in character as Sarah Jane Smith in this release, available from www.bbcshop.com for Â£5.87 for the downloaded version or Â£6.60 for the 1 hour CD.
Alternatively you can buy online from Amazon, where you can get The Shadow People for an amazing Â£3.98!