now be heard above the steady rush of the water. Oliver Swithin, crouching over Sir Harryâs body, looked up.
âRather a convenient coincidence,â he remarked.
âAll right,â said Urchin huffily, âthe CID will need to check to see what time the water came on, but as a theory, itâs no worse than yours, which posits the existence of a murderer for which we have no evidence. The principle of Occamâs Razor would say mineâs the more likely explanation.â
âReally,â replied Swithin casually. âThen how do you explain this?â He unbuttoned Sir Harryâs sodden jacket and flung it open. On the starched front of the dead manâs dress shirt were a series of blue linesâa straight line drawn vertically, crossed twice by two semicircles, like a double-ended trident. âThat wasnât there the last time I saw him.â
The ambulance swerved into sight, slowed to mount the curb, and coasted toward them, scattering the slow-witted pigeons. A moment later, a crowded police car also made the turn from the Strand.
âYou realize what youâre saying,â said Urchin hastily, as several men in belted raincoats clambered out of the car. âYouâre saying that a murder has been committed, and you are the only person known to have been in the vicinity at the time of death.â
âWell, yes, I suppose so.â
Urchin tucked his notebook into the breast pocket of his tunic and placed his hand grandly on Swithinâs shoulder.
âIn that case, Oliver Swithin, alias O.C. Blithely, I arrest you for the murder of Sir Hargreaves Random. By the way,â he added quickly, as the ambulance team descended on the body, âcan I have your autograph? Itâs for my nieces, you understand.â
***
Unlike Police Constable Urchin, Detective Superintendent Timothy Mallard had seen it all during his thirty-five years with the Metropolitan police force, and the deep creases etched into his forehead showed how much of it had challenged his dogged belief in the basic decency of the human animal. Otherwise, he appeared younger than his age, which was closer to sixty than fifty. His milk-white hair, which showed no signs of thinning, always looked a fortnight overdue for the attentions of a barber, and his handsome features were decorated with plain spectacles and a slightly rakish mousÂtache. Tim Mallardâs slim frame, military posture, and remarkable vigor continued to win him decent roles with his local amateur dramatic company, the Theydon Bois Thespians, and also discouraged his superiors at New Scotland Yard from starting conversations that might involve the word âretirement.â (Through a clerical oversight, which had muddled Mallardâs personnel file with the criminal record of a video bootlegger from Streatham, the system had so far failed to pension him off.)
The superintendent was currently rehearsing the role of Banquo for the Theydon Bois Thespiansâ autumn production of Macbeth , and, although resentful that this wouldnât involve any swordplay, he was comforted that the characterâs early death would allow him to play a âblood-balteredâ ghost in the third act and a ghastly apparition in the fourth and still get to the local pub before closing time, if he didnât wait around for the curtain call. (The audience rarely did.) He was pleased to get such a large part; it was a standing joke in the company, which was exclusively Shakespearian, to give Mallard roles that slyly reflected his profession, such as the ConÂstable of France, Snout, Pinch, or Paroles. (Alas, not Dogberry yet.) For the current production of Macbeth , he had narrowly avoided being cast as the Bleeding Sergeant.
On this scorching bank holiday Monday morning, Mallard would much rather have been sitting under a tree learning his lines in his North London garden than standing in a cell in Bow Street police station