Feet of Clay by Terry Pratchett

Visit, saluting. “So I went in and it was just like this, sir.”
    “ Just like this, Constable Visit?”
    “Yes, sir. And the name’s Visit-The-Infidel-With-Explanatory-Pamphlets, sir.”
    “Who was the old lady?”
    “She says she’s Mrs. Kanacki, sir. She says she always brings him his meals. She says she does for him.”
    “ Does for him?”
    “You know, sir. Cleaning and sweeping.”
    There was, indeed, a tray on the floor, along with a broken bowl and some spilled porridge. The lady who did for the old man had been shocked to find that someone else had done for him first.
    “Did she touch him?” he said.
    “She says not, sir.”
    Which meant the old priest had somehow achieved the neatest death Vimes had ever seen. His hands were crossed on his chest. His eyes had been closed.
    And something had been put in his mouth. It looked like a rolled-up piece of paper. It gave the corpse a disconcertingly jaunty look, as though he’d decided to have a last cigarette after dying.
    Vimes gingerly picked out the little scroll and unrolled it. It was covered with meticulously written but unfamiliar symbols. What made them particularly noteworthy was the fact that their author had apparently made use of the only liquid lying around in huge quantities.
    “Yuk,” said Vimes. “Written in blood . Does this mean anything to anyone?”
    “Yes, sir!”
    Vimes rolled his eyes. “Yes, Constable Visit?”
    “Visit-The-Infidel-With-Explanatory-Pamphlets, sir,” said Constable Visit, looking hurt.
    “‘The-Infidel-With-Explanatory-Pamphlets * ’ I was just about to say it, Constable,” said Vimes. “Well?”
    “It’s an ancient Klatchian script,” said Constable Visit. “One of the desert tribes called the Cenotines, sir. They had a sophisticated but fundamentally flawed…”
    “Yes, yes, yes,” said Vimes, who could recognize the verbal foot getting ready to stick itself in the aural door. “But do you know what it means?”
    “I could find out, sir.”
    “Good.”
    “Incidentally, were you able by any chance to find time to have a look at those leaflets I gave you the other day, sir?”
    “Been very busy!” said Vimes automatically.
    “Not to worry, sir,” said Visit, and smiled the wan smile of those doing good against great odds. “When you’ve got a moment will be fine.”
    The old books that had been knocked from the shelves had spilled their pages everywhere. There were splashes of blood on many of them.
    “Some of these look religious,” Vimes said. “You might find something.” He turned. “Detritus, have a look round, will you?”
    Detritus paused in the act of laboriously drawing a chalk outline around the body. “Yessir. What for, sir?”
    “Anything you find.”
    “Right, sir.”
    With a grunt, Vimes hunkered down and prodded at a gray smear on the floor. “Dirt,” he said.
    “You get dat on floors, sir,” said Detritus, helpfully.
    “Except this is off-white. We’re on black loam,” said Vimes.
    “Ah,” said Sergeant Detritus. “A Clue.”
    “Could be just dirt, of course.”
    There was something else. Someone had made an attempt to tidy up the books. They’d stacked several dozen of them in one neat towering pile, one book wide, largest books on the bottom, all the edges squared up with geometrical precision.
    “Now that I don’t understand,” said Vimes. “There’s a fight. The old man is viciously attacked. Then someone—maybe it was him, dying, maybe it was the murderer—writes something down using the poor man’s own blood. And rolls it up neatly and pops it into his mouth like a sweetie. Then he does die and someone shuts his eyes and makes him tidy and piles these books up neatly and…does what? Walks out into the seething hurly-burly that is Ankh-Morpork?”
    Sergeant Detritus’s honest brow furrowed with the effort of thought. “Could be a…could be dere’s a footprint outside der window,” he said. “Dat’s always a Clue wort’ lookin’