The field the stone is in is next to a building site, with the field full of building materials and rubble. The gate into the field was very heavily chained and padlocked, but despite standing on the gate to look over, no stone was visible. We thought the stone may have been knocked over or fallen, and may be within an area of tall grass up a slight hill.
Would have like to have gone back the next morning to ask permission to walk into the field, but with a Covid-dictated exit time of 9am from the holiday cottage, this was before the builders had arrived, so didn't wait around.
Something is not right. This message is just to keep things from messing up down the road