The fact that none of Mr.Glenthorpe's clothes were missing was not likely to be discovered in an inn until suspicion was aroused.

Ronald laid his plans well, but how was he to know that in his path to the pit he walked over soil as plastic and impressionable as wax ?" "But in spite of that you assume he knew exactly where this pit was situated ?" "Nothing more likely.

It is well-known to archaeologists.

Ronald may well have heard of it while staying at Durrington, or he may have known of it personally through some previous visit to this part of the world.

And there is also evidence that Mr.Glenthorpe told him of the hut circles and the pit during dinner last night." "Just one more doubt, Superintendent.