The Findhorn Monster (Spanish‪)‬

Alternative Title: The Grave Digger. A weekend holiday to Scotland’s River Findhorn turns into a thrilling adventure as Roger Meikle and Michael Cain stumble upon a dark and devious scheme. But as the two young men search for clues, they find themselves matching wits with yellow-haired ghosts, wild bagpipers, and vicious smugglers. Soon a few strange occurrences start adding up to a mysterious plot that thickens with every new person Roger and Michael meet...