Death-Watch
by John Dickson Carr
  

Harper, New York; 1935  

295 pages

"Odd crimes?" said Dr. Fell ... "Not at all. Those things only seem odd because a fact is stated out of its proper context. For instance," he rumbled, wheezing argumentatively, "consider this. A thief gets into a clockmaker's shop and steals the hands off a clock. Nothing else is taken or even touched; only the hands from a clock of no especial value.... Well? What would you make of that if you were the policeman to whom it had been reported? As a matter of fact, what sort of crime would you consider it?"

In fact the murderer's plot is as complex as clockwork, but also as delicate as a house of cards: one good sneeze by a participant at the wrong time would blast apart the whole assemblage of evidential springs and motivational screws.
  

Unless you want to draw your own house floor-plan and a Boolean-logic truth table, it is difficult to keep in mind the comings and goings of the characters, including not only who was able to eavesdrop on whom at what time, but even niceties such as who saw moonlight through what passage at what time.

A fine, but over-fine, puzzle.

© 2007 Robert Wilfred Franson