‘... If you ever decide to kick over the traces' (Morse had said) ‘you've got to have an accommodation address - that's the vital point to bear in mind. All right, there are a few people, like the Smiths, who can get away without one; but don't forget they're professional swindlers and they know all the rules of the game backwards. In the normal course of events, though, you've got to get involved in some sort of correspondence. Now, if the princess you're going away with isn't married or if she's a divorcee or if she is just living on her own anyway, then there's no problem, is there? She can be your mistress and your missus for the weekend and she can deal with all the booking - just like Philippa Palmer did. She can use - she must use - her own address and, as I say, there are no problems. Now let's just recap for a minute about where we are with the third woman in this case, the woman who wrote to the hotel as "Mrs Ann Ballard" and who booked in as "Mrs Ann Ballard" from an address in Chipping Norton. Obviously, if we can find her, and find out from her what went on in Annexe 3 on New Year's Eve - or New Year's morning - well, we shall-be home and dry, shan't we? And in fact we know a good deal about her. The key thing - or what I thought was the key thing - was that she'd probably gone to a hair clinic a day or so before turning up at the Haworth Hotel. I'm sorry, Lewis, that you've had such a disappointing time with that side of things. But there was this other side which I kept on thinking about - the address she wrote from and the address the hotel wrote to. Now you can't exchange correspondence with a phoney address - obviously you can't! And yet, you know, you can. You must be able to because it happened’ Lewis! And when you think about it you can do it pretty easily if you've got one particular advantage in life - just the one. And you know what that advantage is? It's being a postman. Now let's just take an example. Let's take the Banbury Road. The house numbers go up a long, long way, don't they? I'm not sure, but certainly to about four hundred and eighty or so. Now if the last house is, say, number 478, what exactly happens to a letter addressed to a non-existent 480? The sorters in the main post office are not going, to be much concerned, are they? It's only just above the last house-number; and as likely as not - even if someone did spot it - he'd probably think a new house was being built there. But if it were addressed, say, to 580, then obviously a sorter is going to think that something's gone askew, and he probably won't put that letter into the appropriate pigeon-hole. In cases like that, Lewis, there's a tray for problem letters, and one of the higher-echelon post-office staff will try to sort them all out later. But whichever way things go, whether the letter would get into the postman's bag, or whether it would get put into the problem tray - it wouldn't matter! You see, the postman himself would be there on the premises while all this sorting was taking place! I know! I've had a long talk on the phone with the Chief Postmaster from Chipping Norton - splendid fellow! - and he said that the letter we saw from the Haworth Hotel, the one addressed to 84 West Street, would pretty certainly have gone straight into the West Street pigeon hole, because it's only a couple over the last street-number; and even if it had been put in the problem tray, the postman waiting to get his sack over his shoulder would have every opportunity of seeing it, and taking it. And there were only two postmen who delivered to West Street in December: one was a youngish fellow who's spending the New Year with his girlfriend in the Canary Islands; and the other is this fellow called Tom Bowman, who lives at Charlbury Drive in Chipping Norton. But there's nobody there - neither him nor his wife - and none of the neighbours knows where they've gone, although Margaret Bowman was at her work in Summertown on Thursday and Friday last week: I've checked that. Anyway there's not much more we can do this weekend. Max says he'll have the body all sewn up and presentable again by Monday, and so we ought to know who he is pretty soon.'
It had been after Morse had finished that Lewis ventured the most important question of all: 'Do you think the murdered man is Tom Bowman, sir?' And Morse had hesitated before replying. 'Do you know, Lewis, I've got a strange sort of feeling that it isn't. .
Morse had nodded off in his chair, and Lewis quietly left the room to help with the drying-up.