'Based on story themes by Hazel Adair, Don Houghton, and Peter Ling for the television serial originally devised by Hazel Adair and Peter Ling'.
Also published: London : White Lion Publishers, 1976.
Crossroads : something old, something new by Malcolm Hulke. ISBN 0903925966. Published by Everest in 1976. Publication and catalogue information, links to buy online and reader comments.