Feeling his way through the pea-soup fog, Police Constable Cooper paused at the noise of a struggle. He stared hard to hear. At the first outcry and the noise of scuffling his hand had whisked to his whistle. But before he could blow a blast to frighten off the attacker, he heard the sickening sound of a cosh on a skull, then the thump of a falling body.
He withheld the blast and with heavy caution, in order to catch the assailant red-handed, he lifted his boots towards the rough breathing and the tearing of cloth.
P.C. Cooper smiled tightly to himself. He knew this to be a narrow cul-de-sac and himself to be between the attacker and escape. He had the culprit all but in his arms.
He winged out his cape and moved slowly but steadily into the blindness of the alley. But a kerb leaped out of nowhere. P.C. Cooper’s stumble and his muffled oath warned the attacker. The constable blew a savage blast. “In the name of the law, stand fast!”
P.C. Cooper heard fleeing footsteps, the ring of a hobnailed boot striking an iron mudscraper, then the creak of a door and the snick of a latch. The culprit, then, was a denizen of this unsavoury alley.
The constable swore under his breath. He had his man — and yet he did not have him. He knew there were a half-dozen doors on either hand. Unless the constable located the right door straightway, the culprit would have time to change from his wet outer clothes and to hide what he had stolen from the victim.
The victim. A dozen paces deeper into the alley, and the constable saw the shape of the victim on the cobblestones.
Feeling sudden clamminess and chill, P.C. Cooper stood over the fallen man. He eyed a familiar hawklike profile, a bloodied deerstalker cap, a still-clutched violin case. Rents showed in the victim’s clothes where hurried hands had torn away a watch chain and snatched a wallet. That the mighty manhunter should have fallen prey to a common robber!
The victim stirred. A word came forth. “Constable...”
P.C. Cooper knelt, careless that his knee touched the wet stones. The blood-blinded face had not turned towards him. How had the man known to call him constable?
The whistle, of course. The habits and skills of a lifetime would not have failed him even in the direst of moments. Though stunned, the great detective would have taken note of some clue, and most likely clung to consciousness now solely to impart that clue.
“Sir, did you see your assailant? Can you describe him?”
A painful shake of the hand.
“Do you know where he ran to?”
A painful nod.
P.C. Cooper’s heart surged, but the man only consciousness enough to point vaguely and gasp, “A flat...”
The constable grimaced in disappointment. The great detective had told P.C. Cooper only what P.C. Cooper already knew.
A flat, indeed! This was an alley of roominghouses — nothing but flats.
P.C. Cooper removed his cape and wadded it under the great detective’s head as a cushion. Then the constable rose and duty took over. His whistle guided answering whistles.
Each blast, each echo, ached. It hurt him to think that his colleagues would find him simply standing there, waiting, while the culprit was safe behind one of those unseen doors.
A flat...
P.C. Cooper shook his head. Why should those words keep ringing in his mind? They had originated in the poor stricken mind of the great detective.
A flat...
Pounding boots pulled up. P.C. Cooper recognised the figure of P.C. Lloyd.
Lloyd was a Welshman, and Welshmen are famous for having perfect pitch.
Swelling with authority, Cooper seized Lloyd’s arm and pointed him.
“Man, hurry and kick the mudscrapers with your great hobnailed boots and find the one that sounds A flat.”