him the difficulties I had met with in attempting to locate the elusive "Go-Between." This officer received me very graciously; he smiled at the short description I gave him of my wanderings, and said: "I think I can put you on the right track straight away; please follow me," and getting up he took me to another room at the far end of the corridor we were then in, where we interviewed another officer who also laughed and told us that Captain Kenny had just changed his room and would now be found in room number —— which was on the floor above. Having thanked these officers for their kindly services I ascended once more, and within ten minutes from abandoning my false scent I ran my quarry to earth and was tapping on his oak.