think we shall go down to the workroom again.’
They descended, locked the door behind them this time, for the key was still in the lock, and visited the other room where were the stores of metal and spare aeroplane parts.
‘Ah, here we are,’ said Devenish, going to a large table in a corner, and pointing to two rubber-tyred wheels that lay there, ‘I take it that these belong to a gyrocopter, and we shall be able later to compare their tracks with those above. I shall have the whole of Mr Mander’s part of the flat locked up. No one must enter until we have given permission.’
‘I shall see to it,’ said Kephim. ‘We shall probably pay off his servants, later on, and close the flat.’
Devenish led the way out, locked the door of those two rooms, and put the keys in his pockets. He went back to the drawing-room, and now Kephim was beginning to show signs of restlessness.
‘Well, sir, I suppose, since you are here, you can tell me what your movements were from eight last night until you arrived this morning in your office?’ said the inspector.
Kephim sat down gloomily. ‘That’s an awkward question to answer,’ he said abruptly.
‘I am afraid I must ask it, sir,’ said Devenish calmly.
Kephim bit his lip. ‘I left Miss Tumour, and had supper at my flat in Baker Street—I have dinner in middle day on Sundays. I read a book until ten, and then sat and smoked, and tried to work out a crossword puzzle till eleven.’
‘And after that, sir?’
‘Well, that is the annoying part. I didn’t feel sleepy, so I went out at about a quarter-past eleven, and walked up to Regent’s Park. Mr Mander was a great man for novelties, and he had asked me to try to think of a novel advertising campaign. I always find my brain works best in the open air. At any rate, I did not get back till about two. I let myself in, and went to bed. My trouble is that I am afraid I did not see anyone who could identify me. I suppose that is what I should have had?’
‘It would seem better,’ Devenish replied mildly, ‘but think again, sir. Surely there was a policeman? They are more or less trained observers, and notice people at night. Or there might be lovers somewhere about. Take your time, sir.’
‘I saw various people, but no policeman,’ said Kephim, ‘but I did not see anyone look at me, and I was not always under a lamp.’
‘A policeman in the shadows may have seen you, sir. They do sometimes see without being seen. I’ll make inquiries, if you give me a sketch of your route.’
Kephim repeated from memory what he thought had been his route. He looked weary and dejected now, and Devenish was about to dismiss him, when someone rang the bell of the flat, and on opening it they saw the detective-sergeant who had accompanied Devenish to the Stores.
‘I beg your pardon, sir, but something rather important has been discovered,’ he said. ‘It’s one of the goods lifts. Seems to have traces of the murder.’
Kephim started. The inspector nodded. ‘We can’t apparently get to it from this floor, and I don’t want to examine it below. Have it sent up to the floor below this. Now Mr Kephim, how do we get to the floor below?’
‘We take this lift, inspector. One floor down, we can get along a passage to the goods-lift landing.’
They got into the lift together. The sergeant let them out at the next stop, and then descended in the lift to carry out his instructions.
The inspector was in plain-clothes, and no one took any particular notice of him as he walked at the manager’s side.
As they turned into the corridor, running parallel with the back of the building, and clear of the selling departments, Devenish turned to his companion.
‘I am sorry to speak of it again, sir, but could you tell me how Miss Tumour was dressed when she left you yesterday evening?’
Kephim was very pale, and began to tremble again, but he found voice to reply.
‘As—as we saw her just now, inspector.’
Devenish nodded. He did not say what both of them thought; that Effie Tumour might have gone almost straight from her flat to the flat above them—just waited, perhaps, for her lover to go out of sight!
AS they approached the lift, Devenish suddenly thought that it was sheer cruelty to take his companion with him any farther.
‘You have had a horrible morning, sir,’ he said to him, noticing how he now dragged his feet. ‘If I were you, I would go out and get some air; and have something to pull you together.’
He had already given instructions to the policemen on the various doors to follow any member of the staff who had been allowed to leave the premises, and felt quite safe in letting the manager go. Kephim thanked him weakly, and left. The detective advanced to where two subordinates stood before an open lift, in a recess at the back of the building.
One was his sergeant, who had brought it up to this floor, and he made way for Devenish, and pointed silently to a tiny spot of dry blood on the floor of the lift itself. The other man handed him a long and slender knife, the handle carefully wrapped in tissue paper, with the information that he had found it lying in the corner by the bloodstain.
Devenish examined the knife most carefully, then returned it. ‘Pack it with the other exhibits, Corbett,’ he said. ‘Where was this lift when you first saw it?’
‘It was down in the basement, sir.’
‘But it can be brought automatically to any floor, can’t it?—It can? Is it a very noiseless lift, or not?—Wonderfully quiet, eh?—Right. It is hard to say whether anyone was brought down in this, or simply came up in it.—Sergeant, I want to see the night watchman who patrols this section of the store. Send him here.’
The sergeant having gone off on this errand, Devenish knelt carefully on the floor inside, and fixed the exact position and dimensions of the blood-spot.
‘It seems to me a useful bit of evidence,’ he remarked, as he got up again, ‘but here is the watchman. Carry on! I am going to question him, but farther along the corridor.’
‘This is Mann, the night watchman, sir,’ said the sergeant.
Devenish nodded to the respectably dressed man of forty who had come up, noted that he looked like an ex-soldier, and motioned him to move a yard down the corridor.
‘Now, sergeant, I have a few jobs for you,’ he said. ‘First you must see the assistant-manager, and he must telephone to a director, if needs be, to have the Store closed. We can’t carry on with people trampling over the place; and if it remains open any longer, we shall have a drive of pressmen harrying us.’
‘But what of the assistants, sir?’ asked the sergeant.
‘My dear fellow, we can’t interrogate thirteen hundred odd men and women today. It doesn’t look like a job that one of them would do either. We must keep those in executive positions for the moment, but get the rest away, and the place closed.’
‘I’ll see to it, sir. Anything else?’
‘You must visit Mr Kephim’s flat in Baker Street, and Miss Tumour’s—I’ll give you both addresses. Find out all you can, and particularly when Miss Tumour left home last night. Also discover at what hour Mr Kephim went out and returned.’
‘Very well, sir.’
When the sergeant had gone, Devenish walked over to the waiting witness. ‘What exactly is your usual round when you patrol this section of the stores at night, Mann?’ he asked, while the ex-soldier kept a steady eye on his face.
‘I come on my shift at ten, sir,’ was the reply. ‘I walk round once, and see that it is