said Tommy, ‘but I shall be a super Desmond. When I arrive at the Larches –’
Tuppence interrupted him unceremoniously.
‘You’re not going to Hampstead tonight?’
‘Why not?’
‘Walk into a trap with your eyes shut!’
‘No, my dear girl, walk into a trap with my eyes open. There’s a lot of difference. I think our friend, Dr Bower, will get a little surprise.’
‘I don’t like it,’ said Tuppence. ‘You know what happens when Desmond disobeys the Chief ’s orders and acts on his own. Our orders were quite clear. To send on the letters at once and to report immediately on anything that happened.’
‘You’ve not got it quite right,’ said Tommy. ‘We were to report immediately if any one came in and mentioned the number 16. Nobody has.’
‘That’s a quibble,’ said Tuppence.
‘It’s no good. I’ve got a fancy for playing a lone hand. My dear old Tuppence, I shall be all right. I shall go armed to the teeth. The essence of the whole thing is that I shall be on my guard and they won’t know it. The Chief will be patting me on the back for a good night’s work.’
‘Well,’ said Tuppence. ‘I don’t like it. That man’s as strong as a gorilla.’
‘Ah!’ said Tommy, ‘but think of my blue-nosed automatic.’
The door of the outer office opened and Albert appeared. Closing the door behind him, he approached them with an envelope in his hand.
‘A gentleman to see you,’ said Albert. ‘When I began the usual stunt of saying you were engaged with Scotland Yard, he told me he knew all about that. Said he came from Scotland Yard himself ! And he wrote something on a card and stuck it up in this envelope.’
Tommy took the envelope and opened it. As he read the card, a grin passed across his face.
‘The gentleman was amusing himself at your expense by speaking the truth, Albert,’ he remarked. ‘Show him in.’
He tossed the card to Tuppence. It bore the name Detective Inspector Dymchurch, and across it was scrawled in pencil–‘A friend of Marriot’s.’
In another minute the Scotland Yard detective was entering the inner office. In appearance, Inspector Dymchurch was of the same type as Inspector Marriot, short and thick set, with shrewd eyes.
‘Good-afternoon,’ said the detective breezily. ‘Marriot’s away in South Wales, but before he went he 69 asked me to keep an eye on you two, and on this place in general. Oh, bless you, sir,’ he went on, as Tommy seemed about to interrupt him, ‘ we know all about it. It’s not our department, and we don’t interfere. But somebody’s got wise lately to the fact that all is not what it seems. You’ve had a gentleman here this afternoon. I don’t know what he called himself, and I don’t know what his real name is, but I know just a little about him. Enough to want to know more. Am I right in assuming that he made a date with you for some particular spot this evening?’
‘Quite right.’
‘I thought as much. 16 Westerham Road, Finsbury Park–was that it?’
‘You’re wrong there,’ said Tommy with a smile. ‘Dead wrong. The Larches, Hampstead.’
Dymchurch seemed honestly taken aback. Clearly he had not expected this.
‘I don’t understand it,’ he muttered. ‘It must be a new layout. The Larches, Hampstead, you said?’
‘Yes. I’m to meet him there at eleven o’clock tonight.’
‘Don’t you do it, sir.’
‘There!’ burst from Tuppence.
Tommy flushed.
‘If you think, Inspector –’ he began heatedly.
But the Inspector raised a soothing hand.
‘I’ll tell you what I think, Mr Blunt. The place you want to be at eleven o’clock tonight is here in this office.’
‘What?’ cried Tuppence, astonished.
‘Here in this office. Never mind how I know–departments overlap sometimes–but you got one of those famous “Blue” letters today. Old what’s-his-name is after that. He lures you up to Hampstead, makes quite sure of your being out of the way, and steps in here at night