During the forty-minute waiting period I made provision for the unlikely case of time travellers visiting us to demonstrate their capability. The pre-planned introduction for a time traveller (if such people exist) was for him or her to say, "Are you looking for a time traveller?" My thinking was that if a cooperative time traveller in the future becomes aware of this experiment, then he or she would 'travel' to the location of the exposure phase (i.e. the cemetery) and make himself or herself known to us. If such a person appeared on the scene and walked up to us and asked the question (considered an unlikely thing for anyone to say to us without knowing what was going on), then it would be a strong possibility that the person was indeed a time traveller.
My son and I were alone at the cemetery when we arrived but during the forty-minute period when the code sheet was open a car arrived at the cemetery car park. The occupants were a middle-aged man and a woman of uncertain age. They didn't approach us, and soon drove away. It was, perhaps, remiss of me not to have taken a photograph of the vehicle and its occupants (they were quite some distance from where we were sitting). Next: Conclusion
Photo 5. My son and I during the 40-minute wait.