âHe apparently went off to sleep, breathed stertorously for a few minutesâpossibly so loudly as to seem to be snoringâand then collapsed.â
âBut how do you know?â asked Henry.
Shelley smiled again. âWe have our methods, Mr. Fairhurst,â he said. There was no doubt that Inspector Shelley could on occasion be a very trying man.
When Henry had departed with his exciting news with which to enliven the somewhat sleepy dovecots of Streatham, Cunningham looked at his chief. They were comfortably ensconced in a small room at the Museum, nominally the abode, during hours, of a library assistant.
âSure youâre right, chief?â he murmured.
âAbsolutely.â Shelley could be very resolute when he chose. âThe man died of cyanide poisoning. His lips smelled of almonds when we examined him. And he must have had a pretty hefty dose of cyanide to pop off as quickly as that, without regaining consciousness.â
âAccident or suicide?â
âAccident can, I think, be ruled out. Suicide is just possible, of course,â Shelley admitted. âItâs not at all likely, though.â
âWhy not?â
âTwo reasons,â said Shelley succinctly. âOne: because it is not really likely that such a man as Arnell, a respected figure in the academic world, would commit suicide in the full view of the public. After all, I do know a little about these university people. Iâve been among them before. And they are in many ways different from us merely ordinary folk. Anyhow, I think, if Arnell wanted to commit suicide, he would do so in the decent privacy of his own home, so that there was at any rate a possibility that he would be thought to have died in his bedâof heart failure, say. It all comes down to a matter of psychology, really.â
Shelleyâs liking for the somewhat high-falutin jargon of the psychologists was well-known at Scotland Yard, and Cunningham, having no desire to listen to a lecture on the comparative merits of Freud, Jung, and Adler, hastened to turn his chief off this track of surmise on to something more likely to be immediately profitable.
âAnd reason number two?â he asked.
âThese,â said Shelley, producing a packet of sweets.
âSugared almonds,â murmured Cunningham. âInteresting.â
âVery interesting indeed, and very suggestive,â said Shelley.
âWhy suggestive?â Cunningham knew that Shelley found this sort of talk valuable. To argue out any case to a sympathetic listener was always helpful.
Shelley smiled at the naive question. âYou understand my funny ways, oh my Cunningham,â he said. âIâve no doubt that you really know about all these things as much as I know myself. But I wonât apologise for pursuing the obvious, as it does make things easier to work them out in words. These almonds are suggestive, because I feel pretty sure that they are the way in which the poison was given.â
Cunninghamâs face expressed such a feeling of complete incredulity that Shelley laughed aloud.
âConsider, Cunningham,â he said. âCyanide has a distinct almond flavour. If some of it were placed inside a sweet of this kind, would the recipient of it know that fact?â
âWell,â said Cunningham thoughtfully. âI wouldnât say that it wouldnât be tasted.â
âIf he chewed it up,â said Shelley, âit would be obvious enough that there was something queer about the sweet. But he would attribute it to something wrong with the making of the thing, and would probably want to spit it out and throw it away. But before he had time to do that the cyanide would be in his system. He would be sleeping his last sleep before the thought of poison really had time to penetrate his mind.â
âThink so?â Cunningham was still mildly incredulous.
âCertain.â Shelley was emphatic.