The Steeltown Strangler (1950) by Harry Stephen Keeler

When you're a superintendent of a steel mill-like Jarleth Blystone-and someone is leaving libellous messages about the owner in hard-to-reach places around the mill, you've got to put a squelch on it-no matter where the trail leads. But in a mill full of swarthy linegangers from around the world there are suspects aplenty. Luckily, Jarleth's brother DeKoven, a mystery writer, is on hand to sort through them. But when the crime spree escalates from libel to murder most foul, the mill is thrown into a chaos of suspense the likes of which only a master of webwork such as Harry Stephen Keeler could unravel. See if you can spot the murderer before he strangles again!

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