Doctor Who Dark Horizons Audio Cd

"On a the very tip of what will one day become Scotland, the islanders believe the worst they have to fear is a Viking attack. The Doctor is just looking for a game on the famous Lewis chess set. Instead he encounters a people under attack from a power they cannot possibly understand. The islanders must take on a ruthless alien force in a world without technology; without communications; without tea that isn't made out of bark. Still, at least they have the Doctor on their side, don't they?"