he knew quite a lot about wireless.â .
âWhen he tuned the thing, had he any particular method? Any characteristic attitude or gesture?â
âI donât think so, sir. I never noticed, and yet Iâve often come into the room when he was at it. I can seem to see him now, sir.â
âYes, yes,â said Alleyn swiftly. âThatâs what we want. A clear mental picture. How was it now? Like this?â
In a moment he was across the room and seated in Septimusâs chair. He swung round to the cabinet and raised his right hand to the tuning control.
âLike this?â
âNo, sir,â said Chase promptly, âthatâs not him at all. Both hands it should be.â
âAh.â Up went Alleynâs left hand to the volume control. âMore like this?â
âYes, sir,â said Chase slowly. âBut thereâs something else and I canât recollect what it was. Something he was always doing. Itâs in the back of my head. You know, sir. Just on the
edge
of my memory, as you might say.â
âI know.â
âItâs a kind â something â to do with irritation,â said Chase slowly.
âIrritation? His?â
âNo. Itâs no good, sir. I canât get it.â
âPerhaps later. Now look here, Chase, what happened to all of you last night? All the servants, I mean.â
âWe were all out, sir. It being Christmas Eve. The mistress sent for me yesterday morning. She said we could take the evening off as soon as I had taken in Mr Tonksâ grog-tray at nine oâclock. So we went,â ended Chase simply.
âWhen?â
âThe rest of the staff got away about nine. I left at ten past, sir, and returned about eleven twenty. The others were back then, and all in bed. I went straight to bed myself, sir.â
âYou came in by a back door, I suppose?â
âYes, sir. Weâve been talking it over. None of us noticed anything unusual.â
âCan you hear the wireless in your part of the house?â
âNo, sir.â
âWell,â said Alleyn, looking up from his notes, âthatâll do, thank you.â
Before Chase reached the door Fox came in.
âBeg pardon, sir,â said Fox, âI just want to take a look at the
Radio Times
on the desk.â
He bent over the paper, wetted a gigantic thumb, and turned a page.
âThatâs it, sir,â shouted Chase suddenly. âThatâs what I tried to think of. Thatâs what he was always doing.â
âBut what?â
âLicking his fingers, sir. It was a habit,â said Chase. âThatâs what he always did when he sat down to the radio. I heard Mr Hislop tell the doctor it nearly drove him demented, the way the master couldnât touch a thing without first licking his fingers.â
âQuite so,â said Alleyn. âIn about ten minutes, ask MrHislop if he will be good enough to come in for a moment. That will be all, thank you, Chase.â
âWell, sir,â remarked Fox when Chase had gone, âif thatâs the case and what I thinkâs right, itâd certainly make matters worse.â
âGood heavens, Fox, what an elaborate remark. What does it mean?â
âIf metal knobs were substituted for bakelite ones and fine wires brought through those holes to make contact, then heâd get a bigger bump if he tuned in with
damp
fingers.â
âYes. And he always used both hands. Fox!â
âSir.â
âApproach the Tonkses again. You havenât left them alone, of course?â
âBaileyâs in there making out heâs interested in the light switches. Heâs found the main switchboard under the stairs. Thereâs signs of a blown fuse having been fixed recently. In a cupboard underneath there are odd lengths of flex and so on. Same brand as this on the wireless and the heater.â
âAh, yes. Could the cord from the