Results of the Carnegie Medal in the year 1957.
An old legend provides the clues for a treasure hunt in the Yorkshire Dales. The seekers are Nan and Mary from the farm, Peter from the inn and Adam Forrest the head boy from Nan's school. The first clue was concealed in the old signboard at the inn and the last somewhere inside a hill but the one that was the most important was a unicorn. Adam was too old to bother with unicorns and thought he could work everything out by science. Mary was too young for science so called the fairies for help and prepared a grass rope so that she could catch the unicorn.