1900, Cambridge, Easter holidays. A young professor of Ontography, who only believes in science and facts, takes a one-week vacation in a little village by the sea, Burnstow, in a beautiful hotel. A colleague of his, teacher of Archaeology, asks him to take a look at a Templars' ancient site that is near the beach. Here, the young man will find a strange bronze whistle and, seeing no danger in it, he proceeds to take it to his room to study it. But what lies beneath those old Roman ruins...?