Dark Shadow is the fifth novel in the Erik Portland series written by Geoff Spedding. It is based upon two mythical rumours which have prevailed in the High Country and other parts of Victoria, Australia for many years. The episode of the doctor's locum happened in the author's own experience and he has expanded upon it for this story. A third issue covered in the book may not by a myth or a rumour, but a distinct possibility. The author suggests...